List of Chromium Command Line Switches

There are lots of command lines which can be used with the Google Chrome browser. Some change behavior of features, others are for debugging or experimenting. This page lists the available switches including their conditions and descriptions. Last automated update occurred on 2014-04-17.

Condition Explanation
--0 Value of the --profiler-timing flag that will disable timing information for chrome://profiler.
--absorb-touchmove No description
--allow-cross-origin-auth-prompt Allows third-party content included on a page to prompt for a HTTP basic auth username/password pair.
--allow-external-pages Allow access to external pages during layout tests.
--allow-file-access On ChromeOS, file:// access is disabled except for certain whitelisted directories. This switch re-enables file:// for testing.
--allow-file-access-from-files By default, file:// URIs cannot read other file:// URIs. This is an override for developers who need the old behavior for testing.
--allow-http-background-page Allows non-https URL for background_page for hosted apps.
--allow-http-screen-capture Allow non-secure origins to use the screen capture API and the desktopCapture extension API.
--allow-legacy-extension-manifests Allows the browser to load extensions that lack a modern manifest when that would otherwise be forbidden.
--allow-loopback-in-peer-connection Allows loopback interface to be added in network list for peer connection.
--allow-nacl-crxfs-api Specifies comma-separated list of extension ids or hosts to grant access to CRX file system APIs.
--allow-nacl-file-handle-api Specifies comma-separated list of extension ids or hosts to grant access to file handle APIs.
--allow-nacl-socket-api Specifies comma-separated list of extension ids or hosts to grant access to TCP/UDP socket APIs.
--allow-no-sandbox-job Enables the sandboxed processes to run without a job object assigned to them. This flag is required to allow Chrome to run in RemoteApps or Citrix. This flag can reduce the security of the sandboxed processes and allow them to do certain API calls like shut down Windows or access the clipboard. Also we lose the chance to kill some processes until the outer job that owns them finishes.
--allow-outdated-plugins Don't block outdated plugins.
--allow-running-insecure-content By default, an https page cannot run JavaScript, CSS or plug-ins from http URLs. This provides an override to get the old insecure behavior.
--allow-sandbox-debugging Allows debugging of sandboxed processes (see zygote_main_linux.cc).
--alsa-input-device[1] The Alsa device to use when opening an audio input stream.
--alsa-output-device[1] The Alsa device to use when opening an audio stream.
--also-emit-success-logs Also emit full event trace logs for successful tests.
--always-authorize-plugins Prevents Chrome from requiring authorization to run certain widely installed but less commonly used plug-ins.
--app Specifies that the associated value should be launched in "application" mode.
--app-id Specifies that the extension-app with the specified id should be launched according to its configuration.
--app-list-start-page-url Specifies an URL to use for app list start page.
--app-mode-auth-code Value of GAIA auth code for --force-app-mode.
--app-mode-oauth-token Value of OAuth2 refresh token for --force-app-mode.
--app-mode-oem-manifest Path for app's OEM manifest file.
--apple No description
--apps-checkout-url Overrides the apps checkout URL, which is used to determine when to expose some private APIs.
--apps-new-install-bubble Whether to always use the new app install bubble when installing an app.
--apps-use-native-frame Experimental native frame support for packaged apps.
--ash-animate-from-boot-splash-screen Enables an animated transition from the boot splash screen (Chrome logo on a white background) to the login screen. Implies |kAshCopyHostBackgroundAtBoot| and doesn't make much sense if used in conjunction with |kDisableBootAnimation| (since the transition begins at the same time as the white/grayscale login screen animation).
--ash-browsertests[2] Force browser tests to run in Ash/Metro on Windows 8.
--ash-constrain-pointer-to-root Constrains the pointer movement within a root window on desktop.
--ash-copy-host-background-at-boot Copies the host window's content to the system background layer at startup. Can make boot slightly slower, but also hides an even-longer awkward period where we display a white background if the login wallpaper takes a long time to load.
--ash-debug-shortcuts Enable keyboard shortcuts useful for debugging.
--ash-default-wallpaper-is-oem Indicates that the wallpaper images specified by kAshDefaultWallpaper{Large,Small} are OEM-specific (i.e. they are not downloadable from Google).
--ash-default-wallpaper-large Default wallpaper to use (as paths to trusted, non-user-writable JPEG files).
--ash-default-wallpaper-small No description
--ash-disable-alternate-caption-button Use the normal visual style for the caption buttons (minimize, maximize, restore, close).
--ash-disable-docked-windows Disable ability to dock windows at the desktop edge.
--ash-enable-alternate-caption-button Use alternate visual style for the caption buttons (minimize, maximize, restore, close). The alternate style: - Adds a dedicated button for minimize. - Removes the maximize button's help bubble.
--ash-enable-magnifier-key-scroller[3] Enables key bindings to scroll magnified screen.
--ash-enable-software-mirroring Enables software based mirroring.
--ash-enable-system-sounds When this flag is set, system sounds will be played whether the ChromeVox is enabled or not.
--ash-enable-touch-view-testing Enables touch view testing. TODO(skuhne): Remove TOGGLE_TOUCH_VIEW_TESTING accelerator once this flag is removed.
--ash-enable-tray-dragging Enables showing the tray bubble by dragging on the shelf.
--ash-force-desktop[2] Force Ash to open its root window on the desktop, even on Windows 8 where it would normally end up in metro.
--ash-guest-wallpaper-large Wallpaper to use in guest mode (as paths to trusted, non-user-writable JPEG files).
--ash-guest-wallpaper-small No description
--ash-hide-notifications-for-factory Hides notifications that are irrelevant to Chrome OS device factory testing, such as battery level updates.
--ash-host-window-bounds Sets a window size, optional position, and optional scale factor. "1024x768" creates a window of size 1024x768. "100+200-1024x768" positions the window at 100,200. "1024x768*2" sets the scale factor to 2 for a high DPI display.
--ash-secondary-display-layout Specifies the layout mode and offsets for the secondary display for testing. The format is "<t|r|b|l>,<offset>" where t=TOP, r=RIGHT, b=BOTTOM and L=LEFT. For example, 'r,-100' means the secondary display is positioned on the right with -100 offset. (above than primary)
--ash-touch-hud Enables the heads-up display for tracking touch points.
--ash-use-first-display-as-internal Uses the 1st display in --ash-host-window-bounds as internal display. This is for debugging on linux desktop.
--ash-webui-init When wallpaper boot animation is not disabled this switch is used to override OOBE/sign in WebUI init type. Possible values: parallel|postpone. Default: parallel.
--assert-test Causes the browser process to throw an assertion on startup.
--audio-buffer-size Allow users to specify a custom buffer size for debugging purpose.
--aura-legacy-power-button (Most) Chrome OS hardware reports ACPI power button releases correctly. Standard hardware reports releases immediately after presses. If set, we lock the screen or shutdown the system immediately in response to a press instead of displaying an interactive animation.
--auth-ext-path Enables overriding the path for the default authentication extension.
--auth-negotiate-delegate-whitelist Whitelist of servers that Negotiate will generate delegated Kerberos tickets for.
--auth-schemes HTTP authentication schemes to enable. This is a comma-separated list of authentication schemes (basic, digest, ntlm, and negotiate). By default all schemes are enabled. The primary use of this command line flag is to help triage authentication-related issues reported by end-users.
--auth-server-whitelist Whitelist of servers which NTLM and Negotiate can automatically authenticate with using the default credentials of the currently logged in user.
--auto The values the kTouchEvents switch may have, as in --touch-events=disabled. auto: enabled at startup when an attached touchscreen is present.
--auto-launch-at-startup A flag that is used to tell Chrome that it was launched automatically at computer startup and not by some user action.
--blacklist-accelerated-compositing Blacklist the GPU for accelerated compositing.
--blacklist-webgl Blacklist the GPU for WebGL.
--block-cross-site-documents Block cross-site documents (i.e., HTML/XML/JSON) from being loaded in subresources when a document is not supposed to read them. This will later allow us to block them from the entire renderer process when site isolation is enabled.
--browser-subprocess-path Path to the exe to run for the renderer and plugin subprocesses.
--browser-test Tells Content Shell that it's running as a content_browsertest.
--bwsi Indicates that the browser is in "browse without sign-in" (Guest session) mode. Should completely disable extensions, sync and bookmarks.
--canvas-msaa-sample-count The number of MSAA samples for canvas2D. Requires MSAA support by GPU to have an effect. 0 disables MSAA.
--cc-layer-tree-test-no-timeout Prevents the layer tree unit tests from timing out.
--cc-rebaseline-pixeltests Makes pixel tests write their output instead of read it.
--certificate-transparency-log Certificate Transparency: Uses the provided log(s) for checking Signed Certificate Timestamps provided with certificates. The switch's value is: log_description:log_key,log_description:log_key,... where log_description is a textual description of the log. log_key is a Base64'd DER-encoded SubjectPublicKeyInfo of the log's public key. Multiple logs can be specified by repeating description:key pairs, separated by a comma.
--channel The value of this switch tells the child process which IPC channel the browser expects to use to communicate with it.
--check-cloud-print-connector-policy Checks the cloud print connector policy, informing the service process if the policy is set to disallow the connector, then quits.
--check-for-update-interval How often (in seconds) to check for updates. Should only be used for testing purposes.
--check-layout-test-sys-deps Check whether all system dependencies for running layout tests are met.
--child-process-type Used to specify the type of child process (switch values from |ChildProcess::Type|).
--cipher-suite-blacklist Comma-separated list of SSL cipher suites to disable.
--clear-token-service Clears the token service before using it. This allows simulating the expiration of credentials during testing.
--client-login-to-oauth2-url No description
--cloud-policy-invalidation-delay The maximum amount of delay in ms between receiving a cloud policy invalidation and fetching the policy. A random delay up to this value is used to prevent Chrome clients from overwhelming the cloud policy server when a policy which affects many users is changed.
--cloud-print-file Tells chrome to display the cloud print dialog and upload the specified file for printing.
--cloud-print-file-type Specifies the mime type to be used when uploading data from the file referenced by cloud-print-file. Defaults to "application/pdf" if unspecified.
--cloud-print-job-title Used with kCloudPrintFile to specify a title for the resulting print job.
--cloud-print-print-ticket Used with kCloudPrintFile to specify a JSON print ticket for the resulting print job. Defaults to null if unspecified.
--cloud-print-service The URL of the cloud print service to use, overrides any value stored in preferences, and the default. Only used if the cloud print service has been enabled. Used for testing.
--cloud-print-setup-proxy Setup cloud print proxy for provided printers. This does not start service or register proxy for autostart.
--cloud-print-xmpp-endpoint The XMPP endpoint the cloud print service will use. Only used if the cloud print service has been enabled. Used for testing.
--compile-shader-always-succeeds Always return success when compiling a shader. Linking will still fail.
--component-updater Comma-separated options to troubleshoot the component updater. Only valid for the browser process.
--composite-to-mailbox Causes the compositor to render to textures which are then sent to the parent through the texture mailbox mechanism. Requires --enable-compositor-frame-message.
--conflicting-modules-check Causes the browser process to inspect loaded and registered DLLs for known conflicts and warn the user.
--console No description
--crash-dumps-dir The directory breakpad should store minidumps in.
--crash-on-hang-threads Comma-separated list of BrowserThreads that cause browser process to crash if the given browser thread is not responsive. UI,IO,DB,FILE,CACHE are the list of BrowserThreads that are supported. For example: --crash-on-hang-threads=UI:3:18,IO:3:18 --> Crash the browser if UI or IO is not responsive for 18 seconds and the number of browser threads that are responding is less than or equal to 3.
--crash-test Causes the browser process to crash on startup.
--create-browser-on-startup-for-tests Some platforms like ChromeOS default to empty desktop. Browser tests may need to add this switch so that at least one browser instance is created on startup. TODO(nkostylev): Investigate if this switch could be removed. (http://crbug.com/148675)
--data-path Makes Content Shell use the given path for its data directory.
--dbus-stub Forces the stub implementation of dbus clients.
--debug-children Will add kDebugOnStart to every child processes. If a value is passed, it will be used as a filter to determine if the child process should have the kDebugOnStart flag passed on or not.
--debug-enable-frame-toggle Enables a frame context menu item that toggles the frame in and out of glass mode (Windows Vista and up only).
--debug-on-start If the program includes base/debug/debug_on_start_win.h, the process will (on Windows only) start the JIT system-registered debugger on itself and will wait for 60 seconds for the debugger to attach to itself. Then a break point will be hit.
--debug-packed-apps Adds debugging entries such as Inspect Element to context menus of packed apps.
--debug-plugin-loading Dumps extra logging about plugin loading to the log file.
--debug-print[5] Enables support to debug printing subsystem.
--default-tile-height No description
--default-tile-width Sets the tile size used by composited layers.
--delete No description
--derelict-detection-timeout Time before a machine at OOBE is considered derelict.
--derelict-idle-timeout Time before a derelict machines starts demo mode.
--desktop No description
--device-management-url Specifies the URL at which to fetch configuration policy from the device management backend. Specifying this switch turns on managed policy from the device management backend.
--diagnostics Triggers a plethora of diagnostic modes.
--diagnostics-format Sets the output format for diagnostic modes enabled by diagnostics flag.
--diagnostics-recovery Tells the diagnostics mode to do the requested recovery step(s).
--disable-3d-apis Disables client-visible 3D APIs, in particular WebGL and Pepper 3D. This is controlled by policy and is kept separate from the other enable/disable switches to avoid accidentally regressing the policy support for controlling access to these APIs.
--disable-accelerated-2d-canvas Disable gpu-accelerated 2d canvas.
--disable-accelerated-compositing Disables accelerated compositing.
--disable-accelerated-fixed-root-background Disables accelerated compositing for backgrounds of root layers with background-attachment: fixed.
--disable-accelerated-layers Disables the hardware acceleration of 3D CSS and animation.
--disable-accelerated-overflow-scroll Disables accelerated compositing for overflow scroll.
--disable-accelerated-video Disables GPU accelerated video display.
--disable-accelerated-video-decode Disables hardware acceleration of video decode, where available.
--disable-app-banners[4] Disables the app banner <meta> tag.
--disable-app-shims[6] Disables the creation and launch of app shims for platform apps.
--disable-application-cache Disable the ApplicationCache.
--disable-async-dns Disables the experimental asynchronous DNS client.
--disable-auth-negotiate-cname-lookup Disables CNAME lookup of the host when generating the Kerberos SPN for a Negotiate challenge. See HttpAuthHandlerNegotiate::CreateSPN for more background.
--disable-background-mode Disables background mode (background apps will not keep chrome running in the background).
--disable-background-networking Disable several subsystems which run network requests in the background. This is for use when doing network performance testing to avoid noise in the measurements.
--disable-backing-store-limit Disable limits on the number of backing stores. Can prevent blinking for users with many windows/tabs and lots of memory.
--disable-boot-animation Disables wallpaper boot animation (except of OOBE case).
--disable-breakpad Disables the crash reporting.
--disable-bundled-ppapi-flash Disables the bundled PPAPI version of Flash.
--disable-cache Force dynamically loaded apps / services to be loaded irrespective of cache instructions.
--disable-canvas-aa Disable antialiasing on 2d canvas.
--disable-cast[4] Disables support for playing videos on Chromecast devices.
--disable-click-delay[4] Disable the click delay by sending click events during double tap.
--disable-client-side-phishing-detection Disables the client-side phishing detection feature. Note that even if client-side phishing detection is enabled, it will only be active if the user has opted in to UMA stats and SafeBrowsing is enabled in the preferences.
--disable-component-extensions-with-background-pages Disable default component extensions with background pages - useful for performance tests where these pages may interfere with perf results.
--disable-component-update No description
--disable-composited-antialiasing Disables layer-edge anti-aliasing in the compositor.
--disable-compositor-touch-hit-testing Disable touch hit testing in the compositor.
--disable-core-animation[7] Disable use of CoreAnimation to draw on the Mac.
--disable-core-animation-plugins[7] Disables support for Core Animation plugins. This is triggered when accelerated compositing is disabled. See http://crbug.com/122430 .
--disable-crl-sets Disables establishing certificate revocation information by downloading a set of CRLs rather than performing on-line checks.
--disable-d3d11 Disables use of D3D11.
--disable-databases Disables HTML5 DB support.
--disable-default-apps Disables installation of default apps on first run. This is used during automated testing.
--disable-delegated-renderer Disables delegated renderer.
--disable-demo-mode Disables the ChromeOS demo.
--disable-desktop-notifications Disables desktop notifications (default enabled on windows).
--disable-device-discovery Disables device discovery.
--disable-device-discovery-notifications Disables device discovery notifications.
--disable-device-enumeration[8] Disables WebRTC device enumeration.
--disable-direct-npapi-requests Handles URL requests by NPAPI plugins through the renderer.
--disable-display-color-calibration[3] No description
--disable-domain-reliability Disables Domain Reliability Monitoring.
--disable-dwm-composition Disables use of DWM composition for top level windows.
--disable-enterprise-user-reporting Disables reporting recently logged in users for enterprise-managed devices.
--disable-extensions Disable extensions.
--disable-extensions-file-access-check Disable checking for user opt-in for extensions that want to inject script into file URLs (ie, always allow it). This is used during automated testing.
--disable-extensions-http-throttling Disable the net::URLRequestThrottlerManager functionality for requests originating from extensions.
--disable-extensions-resource-whitelist Disable mandatory enforcement of web_accessible_resources in extensions.
--disable-fast-text-autosizing Disable the fast text autosizing implementation.
--disable-file-system Disable FileSystem API.
--disable-filters-over-ipc Disables sending filters (SkImageFilter objects) between processes over IPC
--disable-first-run-ui Disables new first-run overlay UI.
--disable-fixed-position-compositing See comment for kEnableCompositingForFixedPosition.
--disable-flash-3d Disable 3D inside of flapper.
--disable-flash-stage3d Disable Stage3D inside of flapper.
--disable-fullscreen-within-tab Disables embedding of Flash fullscreen widgets within the browser window. This restores the old code paths where Flash fullscreen would display in its own separate, always-on-top window. In addition, this disables the new logic which would prevent fullscreening the browser window during screen-capture of a tab. http://crbug.com/256870 and http://crbug.com/290403
--disable-genius-app Disable Genius App and use the original Help App instead.
--disable-gesture-debounce Disable deferral of scroll-ending gesture events when a scroll is active.
--disable-gesture-requirement-for-media-fullscreen[4] Disable user gesture requirement for the media element to enter fullscreen.
--disable-gesture-requirement-for-media-playback[4] Disable user gesture requirement for media playback.
--disable-gesture-tap-highlight No description
--disable-gl-drawing-for-tests Disables GL drawing operations which produce pixel output. With this the GL output will not be correct but tests will run faster.
--disable-gl-error-limit Disable the GL error log limit.
--disable-gl-multisampling Disable GL multisampling.
--disable-glsl-translator Disable the GLSL translator.
--disable-gpu Disables GPU hardware acceleration. If software renderer is not in place, then the GPU process won't launch.
--disable-gpu-compositing Prevent the compositor from using its GPU implementation.
--disable-gpu-driver-bug-workarounds Disable workarounds for various GPU driver bugs.
--disable-gpu-program-cache Turn off gpu program caching
--disable-gpu-rasterization Disable GPU rasterization, i.e. rasterize on the CPU only. Overrides the kEnableGpuRasterization and kForceGpuRasterization flags.
--disable-gpu-sandbox Disable the GPU process sandbox.
--disable-gpu-shader-disk-cache Disables the GPU shader on disk cache.
--disable-gpu-vsync Stop the GPU from synchronizing on the vsync before presenting.
--disable-gpu-watchdog Disable the thread that crashes the GPU process if it stops responding to messages.
--disable-hang-monitor Suppresses hang monitor dialogs in renderer processes. This may allow slow unload handlers on a page to prevent the tab from closing, but the Task Manager can be used to terminate the offending process in this case.
--disable-histogram-customizer Disable the RenderThread's HistogramCustomizer.
--disable-impl-side-painting Paint content on the main thread instead of the compositor thread. Overrides the kEnableImplSidePainting flag.
--disable-infobar-for-protected-media-identifier[4] Disables the infobar popup for accessing protected media identifier.
--disable-infobars Prevent infobars from appearing.
--disable-input-view No description
--disable-ipv6 Don't resolve hostnames to IPv6 addresses. This can be used when debugging issues relating to IPv6, but shouldn't otherwise be needed. Be sure to file bugs if something isn't working properly in the presence of IPv6. This flag can be overidden by the "enable-ipv6" flag.
--disable-java Prevent Java from running.
--disable-javascript Don't execute JavaScript (browser JS like the new tab page still runs).
--disable-kill-after-bad-ipc Don't kill a child process when it sends a bad IPC message. Apart from testing, it is a bad idea from a security perspective to enable this switch.
--disable-layer-squashing Disables layer squashing.
--disable-lcd-text Disables LCD text.
--disable-legacy-window[2] Disable the Legacy Window which corresponds to the size of the WebContents.
--disable-local-storage Disable LocalStorage.
--disable-logging Force logging to be disabled. Logging is enabled by default in debug builds.
--disable-login-animations Avoid doing expensive animations upon login.
--disable-low-end-device-mode[4] Overrides low-end device detection, disabling low-end device optimizations.
--disable-low-res-tiling When using CPU rasterizing disable low resolution tiling. This uses less power, particularly during animations, but more white may be seen during fast scrolling especially on slower devices.
--disable-main-frame-before-activation Disables sending the next BeginMainFrame before the previous commit activates. Overrides the kEnableMainFrameBeforeActivation flag.
--disable-main-frame-before-draw Disables sending the next BeginMainFrame before the previous commit has drawn.
--disable-map-image Disable rasterizer that writes directly to GPU memory. Overrides the kEnableMapImage flag.
--disable-media-history[4] Disable history logging for media elements.
--disable-media-source Disables Media Source API (i.e., the MediaSource object).
--disable-minimize-on-second-launcher-item-click Disable the behavior that the second click on a launcher item (the click when the item is already active) minimizes the item.
--disable-navigator-content-utils Disables experimental navigator content utils implementation.
--disable-network-portal-notification Disables notifications about captive portals in session.
--disable-new-channel-switcher-ui Disable new channel switcher UI.
--disable-new-kiosk-ui Disables new Kiosk UI when kiosk apps are represented as user pods.
--disable-new-ntp[4] Disables the new NTP.
--disable-ntp-other-sessions-menu Disables the menu on the NTP for accessing sessions from other devices.
--disable-origin-chip Disable the origin chip.
--disable-origin-chip-v2 Disable the origin chip in the location bar.
--disable-overlay-fullscreen-video-subtitle Disables blink subtitle and media control on top of overlay fullscreen video.
--disable-overlay-scrollbar Disables overlay scrollbars on Aura or Linux. Does nothing on Mac.
--disable-overscroll-edge-effect[4] Disable overscroll edge effects like those found in Android views.
--disable-panel-fitting[3] Disables panel fitting (used for mirror mode).
--disable-password-generation Disables password generation when we detect that the user is going through account creation.
--disable-password-manager-reauthentication Disable the setting to prompt the user for their OS account password before revealing plaintext passwords in the password manager.
--disable-pepper-3d Disable Pepper3D.
--disable-pinch Disables compositor-accelerated touch-screen pinch gestures.
--disable-plugins Prevent plugins from running.
--disable-plugins-discovery Disable discovering third-party plug-ins. Effectively loading only ones shipped with the browser plus third-party ones as specified by --extra-plugin-dir and --load-plugin switches.
--disable-pnacl Disables the usage of Portable Native Client.
--disable-pnacl-crash-throttling Disables crash throttling for Portable Native Client.
--disable-pnacl-install Disables the installation of Portable Native Client.
--disable-policy-key-verification Disables the verification of policy signing keys. TODO(atwilson): Remove this once all test servers have been updated to produce verification signatures.
--disable-popup-blocking Disable pop-up blocking.
--disable-preconnect Disable speculative TCP/IP preconnection.
--disable-prefixed-encrypted-media Disables prefixed Encrypted Media API (e.g. webkitGenerateKeyRequest()).
--disable-prerender-local-predictor Disable prerendering based on local browsing history.
--disable-print-preview[9] Controls print preview in the browser process. Disables print preview (For testing, and for users who don't like us. :[ )
--disable-prompt-on-repost Normally when the user attempts to navigate to a page that was the result of a post we prompt to make sure they want to. This switch may be used to disable that check. This switch is used during automated testing.
--disable-quic Disables support for the QUIC protocol.
--disable-quic-https Disables support for the HTTPS over QUIC protocol. This is a temporary testing flag. This only has an effect if QUIC protocol is enabled.
--disable-quic-pacing Disable use of pacing of QUIC packets. This only has an effect if QUIC protocol is enabled.
--disable-quic-port-selection Disable use of Chromium's port selection for the ephemeral port via bind(). This only has an effect if QUIC protocol is enabled.
--disable-quickoffice-component-app Disable Quickoffice component app thus handlers won't be registered so it will be possible to install another version as normal app for testing.
--disable-remote-fonts Disables remote web font support. SVG font should always work whether this option is specified or not.
--disable-renderer-accessibility Turns off the accessibility in the renderer.
--disable-repaint-after-layout Disables the new layout/paint system which paints after layout is complete.
--disable-restore-background-contents Prevents the URLs of BackgroundContents from being remembered and re-launched when the browser restarts.
--disable-saml-signin Disables SAML sigin support.
--disable-save-password-bubble Prevents the save password bubble from being enabled.
--disable-scripted-print-throttling Disables throttling prints initiated by scripts.
--disable-search-button-in-omnibox Disables the "search button in omnibox" experiment.
--disable-seccomp-filter-sandbox Disable the seccomp filter sandbox (seccomp-bpf) (Linux only).
--disable-session-storage Disable session storage.
--disable-setuid-sandbox Disable the setuid sandbox (Linux only).
--disable-shader-name-hashing Turn off user-defined name hashing in shaders.
--disable-shared-workers Enable shared workers. Functionality not yet complete.
--disable-site-specific-quirks Disables site-specific tailoring to compatibility issues in WebKit.
--disable-smooth-scrolling Disable smooth scrolling for testing.
--disable-software-rasterizer Disables the use of a 3D software rasterizer.
--disable-spdy31 Disable SPDY/3.1. This is a temporary testing flag.
--disable-speech-input Disables speech input.
--disable-ssl-false-start Disable False Start in SSL and TLS connections.
--disable-sync Disables syncing browser data to a Google Account.
--disable-sync-app-list Disables syncing of the app list independent of extensions.
--disable-sync-sessions-v2 Disables sync/API based session sync implementation (back to legacy).
--disable-sync-synced-notifications Disable synced notifications.
--disable-sync-types Disables syncing one or more sync data types that are on by default. See sync/internal_api/public/base/model_type.h for possible types. Types should be comma separated, and follow the naming convention for string representation of model types, e.g.: --disable-synctypes='Typed URLs, Bookmarks, Autofill Profiles'
--disable-system-fullscreen-for-testing[6] Forcibly disables Lion-style on newer OSes, to allow developers to test the older, SnowLeopard-style fullscreen.
--disable-threaded-animation No description
--disable-threaded-compositing Disable multithreaded GPU compositing of web content.
--disable-threaded-html-parser Disables the threaded HTML parser in Blink
--disable-tls-channel-id Disables TLS Channel ID extension.
--disable-touch-adjustment Disables touch adjustment.
--disable-touch-drag-drop Disables touch event based drag and drop.
--disable-touch-editing Disables controls that support touch base text editing.
--disable-transition-compositing See comment for kEnableCompositingForTransition.
--disable-translate Allows disabling of translate from the command line to assist with automated browser testing (e.g. Selenium/WebDriver). Normal browser users should disable translate with the preference.
--disable-universal-accelerated-overflow-scroll Disable accelerated overflow scrolling in corner cases (that would not be handled by enable-accelerated-overflow-scroll).
--disable-user-media-security Disables some security measures when accessing user media devices like webcams and microphones, especially on non-HTTPS pages.
--disable-views-rect-based-targeting Specifies if a heuristic should be used to determine the most probable target of a gesture, where the touch region is represented by a rectangle.
--disable-volume-adjust-sound Disables volume adjust sound.
--disable-web-resources Disables the backend service for web resources.
--disable-web-security Don't enforce the same-origin policy. (Used by people testing their sites.)
--disable-webaudio Disable web audio API.
--disable-webgl Disable experimental WebGL support.
--disable-webrtc[4] WebRTC is enabled by default on Android.
--disable-webrtc-encryption[8] Disables encryption of RTP Media for WebRTC. When Chrome embeds Content, it ignores this switch on its stable and beta channels.
--disable-webrtc-hw-decoding[8] Disables HW decode acceleration for WebRTC.
--disable-webrtc-hw-encoding[8] Disables HW encode acceleration for WebRTC.
--disable-winsta Disables the alternate window station for the renderer.
--disable-xslt Disables support for XSLT.
--disable-xss-auditor Disables Blink's XSSAuditor. The XSSAuditor mitigates reflective XSS.
--disable-zero-browsers-open-for-tests Some tests seem to require the application to close when the last browser window is closed. Thus, we need a switch to force this behavior for ChromeOS Aura, disable "zero window mode". TODO(pkotwicz): Investigate if this bug can be removed. (http://crbug.com/119175)
--disable-zero-suggest[4] Disables zero suggest experiment on Dev channel.
--disabled disabled: touch events are disabled.
--disk-cache-dir Use a specific disk cache location, rather than one derived from the UserDatadir.
--disk-cache-size Forces the maximum disk space to be used by the disk cache, in bytes.
--dns-log-details No description
--dns-prefetch-disable Disables prefetching of DNS information.
--do-not-ignore-autocomplete-off Forces the password manager to not ignore autocomplete='off' for password forms.
--dom-automation Specifies if the |DOMAutomationController| needs to be bound in the renderer. This binding happens on per-frame basis and hence can potentially be a performance bottleneck. One should only enable it when automating dom based tests.
--dump-browser-histograms Requests that a running browser process dump its collected histograms to a given file. The file is overwritten if it exists.
--dump-render-tree Request pages to be dumped as text once they finished loading.
--echo-ext-path Enables overriding the path for the default echo component extension. Useful for testing.
--egl No description
--enable-accelerated-2d-canvas Enable accelerated 2D canvas.
--enable-accelerated-fixed-root-background Enables accelerated compositing for backgrounds of root layers with background-attachment: fixed. Requires kForceCompositingMode.
--enable-accelerated-overflow-scroll Enables accelerated compositing for overflow scroll. Promotes eligible overflow:scroll elements to layers to enable accelerated scrolling for them.
--enable-accessibility-logging Turns on extremely verbose logging of accessibility events.
--enable-accessibility-tab-switcher[4] Enable the accessibility tab switcher.
--enable-adts-stream-parser Enables ADTS stream parser for Media Source Extensions.
--enable-adview Enables the <adview> tag in packaged apps.
--enable-app-list If set, the app list will be enabled as if enabled from CWS.
--enable-app-list-app-info If set, the app info context menu item is available in the app list UI.
--enable-app-window-controls Enables the <window-controls> tag in platform apps.
--enable-apps-show-on-first-paint Show apps windows after the first paint. Windows will be shown significantly later for heavy apps loading resources synchronously but it will be insignificant for apps that load most of their resources asynchronously.
--enable-async-dns Enables the experimental asynchronous DNS client.
--enable-audio-track-processing[8] Enables audio processing in a MediaStreamTrack. When this flag is on, AEC, NS and AGC will be done per MediaStreamTrack instead of in PeerConnection.
--enable-auth-negotiate-port Enables the inclusion of non-standard ports when generating the Kerberos SPN in response to a Negotiate challenge. See HttpAuthHandlerNegotiate::CreateSPN for more background.
--enable-autologin Enables the pre- and auto-login features. When a user signs in to sync, the browser's cookie jar is pre-filled with GAIA cookies. When the user visits a GAIA login page, an info bar can help the user login.
--enable-automation-api Enables the Automation extension API. TODO(dtseng): Remove once API enabled for stable channel.
--enable-avfoundation[6] AVFoundation is available in versions 10.7 and onwards, and is to be used http://crbug.com/288562 for both audio and video device monitoring and for video capture. Being a dynamically loaded NSBundle and library, it hits the Chrome startup time (http://crbug.com/311325 and http://crbug.com/311437); for experimentation purposes, in particular library load time issue, the usage of this library can be enabled by using this flag.
--enable-begin-frame-scheduling Use a BeginFrame signal from browser to renderer to schedule rendering.
--enable-benchmarking Enables the benchmarking extensions.
--enable-bleeding-edge-rendering-fast-paths Enable bleeding-edge code to make Chrome draw content faster. The changes behind this path are very likely to break lots of content. ** DO NOT use this flag unless you know what you are doing. **
--enable-bookmark-undo Enables the multi-level undo system for bookmarks.
--enable-browser-plugin-for-all-view-types Enables browser plugin for all types of pages.
--enable-browser-text-subpixel-positioning Let text glyphs have X-positions that aren't snapped to the pixel grid in the browser UI.
--enable-carbon-interposing[7] No description
--enable-carrier-switching Enables switching between different cellular carriers from the UI.
--enable-chromium-branding Enable Chromium branding of the executable.
--enable-client-hints Enables client hints, which adds hints about browser state to HTTP requests.
--enable-cloud-print-proxy This applies only when the process type is "service". Enables the Cloud Print Proxy component within the service process.
--enable-cloud-print-xps[2] Fallback to XPS. By default connector uses CDD.
--enable-component-cloud-policy Enables fetching and storing cloud policy for components.
--enable-container-culling Enable experimental container node culling.
--enable-crash-reporter Indicates that crash reporting should be enabled. On platforms where helper processes cannot access to files needed to make this decision, this flag is generated internally.
--enable-crash-reporter-for-testing[10] Used for turning on Breakpad crash reporting in a debug environment where crash reporting is typically compiled but disabled.
--enable-deferred-filters Disable gpu-accelerated 2d canvas.
--enable-deferred-image-decoding Defer image decoding in WebKit until painting.
--enable-delegated-renderer Enables delegated renderer.
--enable-device-discovery-notifications Enable device discovery notifications.
--enable-devtools-experiments If true devtools experimental settings are enabled.
--enable-direct-write[2] Enables the DirectWrite font rendering system on windows.
--enable-dom-distiller Enables the DOM distiller.
--enable-domain-reliability Enables Domain Reliability Monitoring.
--enable-download-resumption Enables restarting interrupted downloads.
--enable-embedded-shared-worker Enables running the SharedWorker inside the renderer process.
--enable-encrypted-media Enables support for Encrypted Media Extensions (e.g. MediaKeys).
--enable-ephemeral-apps Enables experimentation with ephemeral apps, which are launched without installing in Chrome.
--enable-errdialogs Enable displaying error dialogs (for debugging).
--enable-exclusive-audio[2] Use exclusive mode audio streaming for Windows Vista and higher. Leads to lower latencies for audio streams which uses the AudioParameters::AUDIO_PCM_LOW_LATENCY audio path. See http://msdn.microsoft.com/en-us/library/windows/desktop/dd370844.aspx for details.
--enable-experimental-app-list If set, the experimental app list will be used.
--enable-experimental-app-list-position If set, the experimental app list position will be used.
--enable-experimental-canvas-features Enable experimental canvas features, e.g. canvas 2D context attributes
--enable-experimental-extension-apis Enables extension APIs that are in development.
--enable-experimental-web-platform-features Enables Web Platform features that are in development.
--enable-extension-activity-log-testing No description
--enable-extension-activity-logging Enables logging for extension activity.
--enable-fast-text-autosizing Enable the fast text autosizing implementation.
--enable-fast-unload Enable the fast unload controller, which speeds up tab/window close by running a tab's onunload js handler independently of the GUI - crbug.com/142458 .
--enable-file-cookies By default, cookies are not allowed on file://. They are needed for testing, for example page cycler and layout tests. See bug 1157243.
--enable-first-run-ui-transitions Enables animated transitions during first-run tutorial.
--enable-fixed-position-compositing Enable the creation of compositing layers for fixed position elements. Three options are needed to support four possible scenarios: 1. Default (disabled) 2. Enabled always (to allow dogfooding) 3. Disabled always (to give safety fallback for users) 4. Enabled only if we detect a highDPI display Option #4 may soon be the default, because the feature is needed soon for high DPI, but cannot be used (yet) for low DPI. Options #2 and #3 will override Option #4.
--enable-font-smoothing Enable font smoothing for pixel tests.
--enable-gesture-tap-highlight Enable Gesture Tap Highlight
--enable-gpu-benchmarking Enables the GPU benchmarking extension
--enable-gpu-client-logging No description
--enable-gpu-client-tracing Enables TRACE for GL calls in the renderer.
--enable-gpu-command-logging Turn on Logging GPU commands.
--enable-gpu-debugging Turn on Calling GL Error after every command.
--enable-gpu-rasterization Allow heuristics to determine when a layer tile should be drawn with the Skia GPU backend. Only valid with GPU accelerated compositing + impl-side painting.
--enable-gpu-service-logging Turns on GPU logging (debug build only).
--enable-gpu-service-tracing Turns on calling TRACE for every GL call.
--enable-grouped-history Enables grouping websites by domain and filtering them by period.
--enable-handle-auditing Enumerates and prints a child process' most dangerous handles when it is terminated.
--enable-handle-auditing-all The same as kAuditHandles except all handles are enumerated.
--enable-hardware-overlays Enable compositing individual elements via hardware overlays when permitted by device.
--enable-high-dpi-fixed-position-compositing See comment for kEnableCompositingForFixedPosition.
--enable-high-resolution-time[2] Use high resolution timers for TimeTicks.
--enable-impl-side-painting Paint content on the compositor thread instead of the main thread.
--enable-inband-text-tracks Enables support for inband text tracks in media content.
--enable-input-view No description
--enable-instant-search-clicks[4] Enables instant search clicks feature.
--enable-ipv6 Enables IPv6 support, even if probes suggest that it may not be fully supported. Some probes may require internet connections, and this flag will allow support independent of application testing. This flag overrides "disable-ipv6" which appears elswhere in this file.
--enable-kiosk-mode Enable Kiosk mode for ChromeOS. Note this switch refers to retail mode rather than the kiosk app mode.
--enable-layer-squashing Enables experimental feature that maps multiple RenderLayers to one composited layer to avoid pathological layer counts.
--enable-lcd-text Enables LCD text.
--enable-leak-detection Enables the leak detection of loading webpages. This allows us to check whether or not reloading a webpage releases web-related objects correctly.
--enable-linkable-ephemeral-apps Enables experimentation with launching ephemeral apps via hyperlinks.
--enable-logging Force logging to be enabled. Logging is disabled by default in release builds.
--enable-low-end-device-mode[4] Overrides low-end device detection, enabling low-end device optimizations.
--enable-low-res-tiling When using CPU rasterizing generate low resolution tiling. Low res tiles may be displayed during fast scrolls especially on slower devices.
--enable-main-frame-before-activation Enables sending the next BeginMainFrame before the previous commit activates.
--enable-map-image Enable rasterizer that writes directly to GPU memory.
--enable-memory-benchmarking Enables the memory benchmarking extension
--enable-metrics-reporting-for-testing Enables metrics recording and reporting in the browser startup sequence, as if this was an official Chrome build where the user allowed metrics reporting. This is used for testing only.
--enable-monitor-profile On Windows, converts the page to the currently-installed monitor profile. This does NOT enable color management for images. The source is still assumed to be sRGB.
--enable-multiprocess Load apps in separate processes. TODO(vtl): Work in progress; doesn't work. Flip this to "disable" (or maybe change it to "single-process") when it works.
--enable-nacl Runs the Native Client inside the renderer process and enables GPU plugin (internally adds lEnableGpuPlugin to the command line).
--enable-nacl-debug Enables debugging via RSP over a socket.
--enable-nacl-nonsfi-mode Enables Non-SFI mode, in which programs can be run without NaCl's SFI sandbox.
--enable-natural-scroll-default Enables natural scroll by default.
--enable-net-benchmarking Enables the network-related benchmarking extensions.
--enable-network-portal-notification Enables notifications about captive portals in session.
--enable-network-time Enables |NetworkTimeService| to convert local time to network time.
--enable-new-ntp[4] Enables the new NTP.
--enable-npn-http Enables NPN with HTTP. It means NPN is enabled but SPDY won't be used. HTTP is still used for all requests.
--enable-offline-auto-reload Enable auto-reload of error pages if offline.
--enable-offline-cache-access Enables use of cache if offline, even if it's stale
--enable-origin-chip Controls which branch of the origin chip experiment is enabled. The first flag (enable-origin-chip) is equivalent to the third (enable-origin-chip-trailing-location-bar) and exists for backwards compatability with an earlier version of the experiment. We're using independent flags here (as opposed to a common flag with different values) to be able to enable/disable the entire experience associated with this feature server-side from the FieldTrial (the complete experience includes other flag changes as well). It is not currently possible to do that with "flag=value" flags.
--enable-origin-chip-leading-location-bar No description
--enable-origin-chip-leading-menu-button No description
--enable-origin-chip-trailing-location-bar No description
--enable-origin-chip-v2 Controls which branch of the origin chip in location bar experiment is enabled. We're using independent flags here (as opposed to a common flag with different values) to be able to enable/disable the entire experience associated with this feature server-side from the FieldTrial (the complete experience includes other flag changes as well). It is not currently possible to do that with "flag=value" flags.
--enable-origin-chip-v2-hide-on-mouse-release No description
--enable-origin-chip-v2-hide-on-user-input No description
--enable-overlay-fullscreen-video Enables use of hardware overlay for fullscreen video playback. Android only.
--enable-overlay-scrollbar Enables overlay scrollbars on Aura or Linux. Does nothing on Mac.
--enable-override-bookmarks-ui Enables extensions to hide bookmarks UI elements.
--enable-overscroll-notifications Forward overscroll event data from the renderer to the browser.
--enable-panels Enables panels (always on-top docked pop-up windows).
--enable-password-generation Enables password generation when we detect that the user is going through account creation.
--enable-password-manager-internals-ui Enables the chrome://memory-internals/ page.
--enable-pepper-testing Enables the testing interface for PPAPI.
--enable-permissions-bubbles Use bubbles for content permissions requests instead of infobars.
--enable-pinch Enables compositor-accelerated touch-screen pinch gestures.
--enable-pinch-virtual-viewport Virtual viewport for fixed-position elements, scrollbars during pinch.
--enable-pixel-output-in-tests Forces tests to produce pixel output when they normally wouldn't.
--enable-precache Enables the proactive populating of the disk cache with Web resources that are likely to be needed in future page fetches.
--enable-preparsed-js-caching Enable caching of pre-parsed JS script data. See http://crbug.com/32407.
--enable-print-preview[11] Enables print preview. Chromium normally does not have the PDF viewer, required for print preview. pdf.dll or libpdf.so should be present in primary directory of Chromium. For local builds it's usually out/Debug or out/Release.
--enable-print-preview-register-promos Enables showing unregistered printers in print preview
--enable-privet-storage Enable Privet storage.
--enable-privileged-webgl-extensions Enable privileged WebGL extensions; without this switch such extensions are available only to Chrome extensions.
--enable-profile-shortcut-manager[2] Force-enables the profile shortcut manager. This is needed for tests since they use a custom-user-data-dir which disables this.
--enable-profiling Enables tracking of tasks in profiler for viewing via about:profiler. To predominantly disable tracking (profiling), use the command line switch: --enable-profiling=0 Some tracking will still take place at startup, but it will be turned off during chrome_browser_main.
--enable-query-extraction Enables query in the omnibox.
--enable-quic Enables support for the QUIC protocol. This is a temporary testing flag.
--enable-quic-https Enables support for the HTTPS over QUIC protocol. This is a temporary testing flag. This only has an effect if QUIC protocol is enabled.
--enable-quic-pacing Disable use of pacing of QUIC packets. This only has an effect if QUIC protocol is enabled.
--enable-quic-port-selection Enable use of Chromium's port selection for the ephemeral port via bind(). This only has an effect if QUIC protocol is enabled.
--enable-region-based-columns Enables the CSS multicol implementation that uses the regions implementation.
--enable-repaint-after-layout Enables the new layout/paint system which paints after layout is complete.
--enable-request-tablet-site Enables request of tablet site (via user agent override).
--enable-sandbox-logging Cause the OS X sandbox write to syslog every time an access to a resource is denied by the sandbox.
--enable-save-password-bubble Enables save password prompt bubble.
--enable-scroll-prediction Enable scroll prediction for scroll update events.
--enable-sdch-over-https Enables SDCH for https schemes.
--enable-search-button-in-omnibox-always Controls which branch of the "search button in omnibox" experiment is enabled. We're using independent flags here (as opposed to a common flag with different values) to be able to enable/disable the entire experience associated with this feature server-side from the FieldTrial (the complete experience includes other flag changes as well). It is not currently possible to do that with "flag=value" flags.
--enable-search-button-in-omnibox-for-str No description
--enable-search-button-in-omnibox-for-str-or-iip No description
--enable-seccomp-filter-sandbox Enables seccomp-bpf support for Android. Requires experimental kernel support. <http://crbug.com/166704>
--enable-service-worker Enable support for ServiceWorker. See https://github.com/slightlyoff/ServiceWorker for more information.
--enable-service-worker-sync Enable support for sync events in ServiceWorkers.
--enable-settings-window Enable settings in a separate browser window per profile.
--enable-share-group-async-texture-upload Allows async texture uploads (off main thread) via GL context sharing.
--enable-shared-worker-memory-info Make the values returned to window.performance.memory more granular and more up to date in shared worker. Without this flag, the memory information is still available, but it is bucketized and updated less frequently.
--enable-simplified-fullscreen[6] Enables a simplified fullscreen UI on Mac.
--enable-skia-benchmarking Enables the Skia benchmarking extension
--enable-smooth-scrolling On platforms that support it, enables smooth scroll animation.
--enable-software-compositing Allow the compositor to use its software implementation if GL fails.
--enable-spatial-navigation Enable spatial navigation
--enable-spdy4 Enable SPDY/4, aka HTTP/2. This is a temporary testing flag.
--enable-speech-dispatcher[12] Allows sending text-to-speech requests to speech-dispatcher, a common Linux speech service. Because it's buggy, the user must explicitly enable it so that visiting a random webpage can't cause instability.
--enable-speech-recognition[4] Enable the recognition part of the Web Speech API.
--enable-speech-synthesis Enables the synthesis part of the Web Speech API.
--enable-spelling-auto-correct Enables auto correction for misspelled words.
--enable-spelling-feedback-field-trial Enables participation in the field trial for user feedback to spelling service.
--enable-stacked-tab-strip Enables the stacked tabstrip.
--enable-stats-collection-bindings Specifies if the |StatsCollectionController| needs to be bound in the renderer. This binding happens on per-frame basis and hence can potentially be a performance bottleneck. One should only enable it when running a test that needs to access the provided statistics.
--enable-stats-table Enables StatsTable, logging statistics to a global named shared memory table.
--enable-streamlined-hosted-apps Enables an experimental hosted app experience.
--enable-strict-site-isolation Experimentally ensures that each renderer process: 1) Only handles rendering for pages from a single site, apart from iframes. (Note that a page can reference content from multiple origins due to images, JavaScript files, etc. Cross-site iframes are also loaded in-process.) 2) Only has authority to see or use cookies for the page's top-level origin. (So if a.com iframes b.com, the b.com network request will be sent without cookies.) This is expected to break compatibility with many pages for now. Unlike the --site-per-process flag, this allows cross-site iframes, but it blocks all cookies on cross-site requests.
--enable-swipe-selection No description
--enable-sync-app-list Enables syncing of the app list independent of extensions.
--enable-sync-articles Enables synced articles.
--enable-sync-synced-notifications Enables synced notifications.
--enable-syncfs-directory-operation Enables directory support for sync filesystem
--enable-targeted-style-recalc Enables targeted style recalculation optimizations.
--enable-tcp-fastopen Enable use of experimental TCP sockets API for sending data in the SYN packet.
--enable-threaded-compositing Enable multithreaded GPU compositing of web content.
--enable-thumbnail-retargeting Enables fanciful thumbnail processing. Used with NTP for instant-extended-api, where thumbnails are generally smaller.
--enable-top-controls-position-calculation No description
--enable-touch-drag-drop Enables touch event based drag and drop.
--enable-touch-editing Enables controls that support touch base text editing.
--enable-transition-compositing Enable/Disable the creation of compositing layers for RenderLayers with a transition on a property that supports accelerated animation (that is, opacity, -webkit-transform, and -webkit-filter), even when no animation is running. These options allow for three possible scenarios: 1. Default (enabled only if we dectect a highDPI display) 2. Enabled always. 3. Disabled always.
--enable-translate-new-ux Enables Translate experimental new UX which replaces the infobar.
--enable-universal-accelerated-overflow-scroll Enable accelerated overflow scrolling in all cases.
--enable-user-controlled-alternate-protocol-ports Enables Alternate-Protocol when the port is user controlled (> 1024).
--enable-usermedia-screen-capturing Enable screen capturing support for MediaStream API.
--enable-viewport Enables the use of the @viewport CSS rule, which allows pages to control aspects of their own layout. This also turns on touch-screen pinch gestures.
--enable-viewport-meta Enables the use of the legacy viewport meta tag. Turning this on also turns on the @viewport CSS rule
--enable-virtual-keyboard No description
--enable-visual-word-movement Enables moving cursor by word in visual order.
--enable-vtune-support Enable the Vtune profiler support.
--enable-watchdog Spawns threads to watch for excessive delays in specified message loops. User should set breakpoints on Alarm() to examine problematic thread. Usage: -enable-watchdog=[ui][io] Order of the listed sub-arguments does not matter.
--enable-web-animations-svg Enable SVG Animations on the Web Animations model.
--enable-web-based-signin Enables the pure web-based flow for sign in on first run/NTP/wrench menu/ settings page.
--enable-web-midi Enables Web MIDI API.
--enable-webgl-draft-extensions Enables WebGL extensions not yet approved by the community.
--enable-webkit-text-subpixel-positioning Enable text glyphs to have X-positions that aren't snapped to the pixel grid in webkit renderers.
--enable-webrtc-hw-vp8-encoding[8] Enables VP8 HW encode acceleration for WebRTC.
--enable-webrtc-tcp-server-socket[8] Enables WebRTC to open TCP server sockets.
--enable-websocket-over-spdy Uses WebSocket over SPDY.
--enable-zero-suggest-ether-noserp[4] Enables zero suggest functionality on Dev channel, showing contextual suggestions (EtherSuggest) for http pages.
--enable-zero-suggest-ether-serp[4] Enables zero suggest functionality on Dev channel, showing contextual suggestions (EtherSuggest) for http pages and google.com search queries.
--enable-zero-suggest-most-visited[4] Enables zero suggest functionality on Dev channel, showing most visited sites as default suggestions.
--enable-zero-suggest-personalized[4] Enables zero suggest functionality on Dev channel, showing recently typed queries as default suggestions.
--enabled enabled: touch events always enabled.
--encode-binary Encode binary layout test results (images, audio) using base64.
--enforce-gl-minimums Enforce GL minimums.
--enhanced-bookmarks-experiment Enable Enhanced Bookmarks.
--enterprise-enable-forced-re-enrollment Whether to enable forced enterprise re-enrollment.
--enterprise-enrollment-initial-modulus Power of the power-of-2 initial modulus that will be used by the auto-enrollment client. E.g. "4" means the modulus will be 2^4 = 16.
--enterprise-enrollment-modulus-limit Power of the power-of-2 maximum modulus that will be used by the auto-enrollment client.
--enterprise-enrollment-skip-robot-auth Don't create robot account on enrollment. Used when testing device enrollment against YAPS or the Python test server.
--error-console Allows the ErrorConsole to collect runtime and manifest errors, and display them in the chrome:extensions page.
--event-page-idle-time The time in milliseconds that an extension event page can be idle before it is shut down.
--event-page-unloading-time The time in milliseconds that an extension event page has between being notified of its impending unload and that unload happening.
--explicitly-allowed-ports Explicitly allows additional ports using a comma-separated list of port numbers.
--expose-internals-for-testing Exposes the window.internals object to JavaScript for interactive development and debugging of layout tests that rely on it.
--extension-process Marks a renderer as extension process.
--extensions-install-verification Turns on extension install verification if it would not otherwise have been turned on.
--extensions-not-webstore Specifies a comma-separated list of extension ids that should be forced to be treated as not from the webstore when doing install verification.
--extensions-on-chrome-urls Enables extensions running scripts on chrome:// URLs. Extensions still need to explicitly request access to chrome:// URLs in the manifest.
--extensions-update-frequency Frequency in seconds for Extensions auto-update.
--extra-chrome-flags Extra flags that the test should pass to launched browser process.
--extra-plugin-dir Load NPAPI plugins from the specified directory.
--extra-search-query-params Additional query params to insert in the search and instant URLs. Useful for testing.
--fake-cloud-policy-type[13] Registers for cloud policy using the BROWSER client type instead of the ANDROID_BROWSER or IOS_BROWSER types. This allows skipping the server whitelist. TODO(joaodasilva): remove this. http://crbug.com/248527
--fake-variations-channel Fakes the channel of the browser for purposes of Variations filtering. This is to be used for testing only. Possible values are "stable", "beta", "dev" and "canary". Note that this only applies if the browser's reported channel is UNKNOWN.
--fast-start If this flag is present then this command line is being delegated to an already running chrome process via the fast path, ie: before chrome.dll is loaded. It is useful to tell the difference for tracking purposes.
--fast-user-switching Allows displaying the list of existing profiles in the avatar bubble for fast switching between profiles.
--feedback-server Alternative feedback server to use when submitting user feedback
--file-descriptor-limit The file descriptor limit is set to the value of this switch, subject to the OS hard limits. Useful for testing that file descriptor exhaustion is handled gracefully.
--file-manager-enable-new-audio-player Enables the new audio player in the Files.app.
--filemgr-ext-path[14] Enables overriding the path of file manager extension.
--first-exec-after-boot Passed to Chrome the first time that it's run after the system boots. Not passed on restart after sign out.
--flag-switches-begin These two flags are added around the switches about:flags adds to the command line. This is useful to see which switches were added by about:flags on about:version. They don't have any effect.
--flag-switches-end No description
--force-app-mode Forces application mode. This hides certain system UI elements and forces the app to be installed if it hasn't been already.
--force-compositing-mode If accelerated compositing is supported, always enter compositing mode for the base layer even when compositing is not strictly required.
--force-desktop[2] For the DelegateExecute verb handler to launch Chrome in desktop mode on Windows 8 and higher. Used when relaunching metro Chrome.
--force-dev-mode-highlighting Whether to force developer mode extensions highlighting.
--force-device-scale-factor Overrides the device scale factor for the browser UI and the contents.
--force-directshow[2] Used to troubleshoot problems with different video capture implementations on Windows. By default we use the Media Foundation API on Windows 7 and up, but specifying this switch will force use of DirectShow always. See bug: http://crbug.com/268412
--force-fieldtrials Some field trials may be randomized in the browser, and the randomly selected outcome needs to be propagated to the renderer. For instance, this is used to modify histograms recorded in the renderer, or to get the renderer to also set of its state (initialize, or not initialize components) to match the experiment(s). The option is also useful for forcing field trials when testing changes locally. The argument is a list of name and value pairs, separated by slashes. See FieldTrialList::CreateTrialsFromString() in field_trial.h for details.
--force-first-run Displays the First Run experience when the browser is started, regardless of whether or not it's actually the First Run (this overrides kNoFirstRun).
--force-first-run-ui Forces first-run UI to be shown for every login.
--force-gpu-mem-available-mb Sets the total amount of memory that may be allocated for GPU resources
--force-gpu-rasterization Always use the Skia GPU backend for drawing layer tiles. Only valid with GPU accelerated compositing + impl-side painting. Overrides the kEnableGpuRasterization flag.
--force-immersive[2] For the DelegateExecute verb handler to launch Chrome in metro mode on Windows 8 and higher. Used when relaunching metro Chrome.
--force-login-manager-in-tests Usually in browser tests the usual login manager bringup is skipped so that tests can change how it's brought up. This flag disables that.
--force-mediafoundation[2] Force the use of MediaFoundation for video capture. This is only supported in Windows 7 and above. Used, like |kForceDirectShowVideoCapture|, to troubleshoot problems in Windows platforms.
--force-renderer-accessibility Force renderer accessibility to be on instead of enabling it on demand when a screen reader is detected. The disable-renderer-accessibility switch overrides this if present.
--force-variation-ids Forces additional Chrome Variation Ids that will be sent in X-Client-Data header, specified as a 64-bit encoded list of numeric experiment ids. Ids prefixed with the character "t" will be treated as Trigger Variation Ids.
--force-wave-audio[2] Use Windows WaveOut/In audio API even if Core Audio is supported.
--force_discrete No description
--force_integrated No description
--full-memory-crash-report Generates full memory crash dump.
--gaia-url No description
--global-commands Enables setting global commands through the Extensions Commands API.
--google-apis-url No description
--google-base-url Specifies an alternate URL to use for speaking to Google. Useful for testing.
--google-profile-info Enables using GAIA information to populate profile name and icon.
--gpu-device-id Passes gpu device_id from browser process to GPU process.
--gpu-driver-bug-workarounds Pass a set of GpuDriverBugWorkaroundType ids, seperated by ','.
--gpu-driver-vendor Passes gpu driver_vendor from browser process to GPU process.
--gpu-driver-version Passes gpu driver_version from browser process to GPU process.
--gpu-launcher Extra command line options for launching the GPU process (normally used for debugging). Use like renderer-cmd-prefix.
--gpu-no-context-lost Inform Chrome that a GPU context will not be lost in power saving mode, screen saving mode, etc. Note that this flag does not ensure that a GPU context will never be lost in any situations, say, a GPU reset.
--gpu-process Makes this process a GPU sub-process.
--gpu-program-cache-size-kb Sets the maximum size of the in-memory gpu program cache, in kb
--gpu-sandbox-allow-sysv-shm Allow shmat system call in GPU sandbox.
--gpu-sandbox-failures-fatal Makes GPU sandbox failures fatal.
--gpu-sandbox-start-after-initialization Allow GPU sandbox to start later
--gpu-startup-dialog Causes the GPU process to display a dialog on launch.
--gpu-switching Overwrite the default GPU automatic switching behavior to force on integrated GPU or discrete GPU.
--gpu-vendor-id Passes gpu vendor_id from browser process to GPU process.
--gssapi-library-name Specifies a custom name for the GSSAPI library to load.
--h No description
--has-chromeos-diamond-key If true, the Chromebook has a keyboard with a diamond key.
--has-chromeos-keyboard If true, the Chromebook has a Chrome OS keyboard. Don't use the flag for Chromeboxes.
--help These flags show the man page on Linux. They are equivalent to each other.
--hide-icons Makes Windows happy by allowing it to show "Enable access to this program" checkbox in Add/Remove Programs->Set Program Access and Defaults. This only shows an error box because the only way to hide Chrome is by uninstalling it.
--high-dpi-support Enables/Disables High DPI support (windows)
--highlight-missing-scaled-resources If a resource is requested at a scale factor at which it is not available or the resource is the incorrect size (based on the size of the 1x resource), generates the missing resource and applies a red mask to the generated resource. Resources for which hidpi is not supported because of software reasons will show up pixelated.
--homepage Specifies which page will be displayed in newly-opened tabs. We need this for testing purposes so that the UI tests don't depend on what comes up for http://google.com.
--host-resolver-parallelism The maximum number of concurrent host resolve requests (i.e. DNS) to allow (not counting backup attempts which would also consume threads). --host-resolver-retry-attempts must be set to zero for this to be exact.
--host-resolver-retry-attempts The maximum number of retry attempts to resolve the host. Set this to zero to disable host resolver retry attempts.
--host-resolver-rules These mappings only apply to the host resolver.
--host-rules Comma-separated list of rules that control how hostnames are mapped. For example: "MAP * 127.0.0.1" --> Forces all hostnames to be mapped to 127.0.0.1 "MAP *.google.com proxy" --> Forces all google.com subdomains to be resolved to "proxy". "MAP test.com [::1]:77 --> Forces "test.com" to resolve to IPv6 loopback. Will also force the port of the resulting socket address to be 77. "MAP * baz, EXCLUDE www.google.com" --> Remaps everything to "baz", except for "www.google.com". These mappings apply to the endpoint host in a net::URLRequest (the TCP connect and host resolver in a direct connection, and the CONNECT in an http proxy connection, and the endpoint host in a SOCKS proxy connection).
--ignore-certificate-errors Ignores certificate-related errors.
--ignore-gpu-blacklist Ignores GPU blacklist.
--ignore-urlfetcher-cert-requests Causes net::URLFetchers to ignore requests for SSL client certificates, causing them to attempt an unauthenticated SSL/TLS session. This is intended for use when testing various service URLs (eg: kPromoServerURL, kSbURLPrefix, kSyncServiceURL, etc)
--image-loader-ext-path[14] Enables overriding the path of image loader extension.
--in-process-gpu Run the GPU process as a thread in the browser process.
--incognito Causes the browser to launch directly in incognito mode.
--install No description
--install-chrome-app Causes Chrome to initiate an installation flow for the given app.
--install-from-webstore Causes Chrome to attempt to get metadata from the webstore for the app/extension ID given, and then prompt the user to download and install it.
--instant-process Marks a renderer as an Instant process.
--invalidation-use-gcm-channel Invalidation service should use GCM network channel even if experiment is not enabled.
--ipc-fuzzer-testcase Specifies the testcase used by the IPC fuzzer.
--js-flags Specifies the flags passed to JS engine
--keep-alive-for-test Used for testing - keeps browser alive after last browser window closes.
--keyboard-usability-experiment No description
--kiosk Enable Kiosk mode.
--kiosk-mode-screensaver-path Path for the screensaver used in Kiosk mode
--kiosk-printing Print automatically in kiosk mode. |kKioskMode| must be set as well. See http://crbug.com/31395.
--lang The language file that we want to try to open. Of the form language[-country] where language is the 2 letter code from ISO-639.
--limited-install-from-webstore Causes Chrome to attempt to get metadata from the webstore for the given item, and then prompt the user to download and install it.
--load-and-launch-app Loads an app from the specified directory and launches it.
--load-component-extension Comma-separated list of directories with component extensions to load.
--load-extension Loads an extension from the specified directory.
--load-plugin Load an NPAPI plugin from the specified path.
--local-heuristics-only-for-password-generation Removes the requirement that we recieved a ping from the autofill servers and that the user doesn't have the given form blacklisted. Used in testing.
--locale_pak Load the locale resources from the given path. When running on Mac/Unix the path should point to a locale.pak file.
--log-gpu-control-list-decisions Logs GPU control list decisions when enforcing blacklist rules.
--log-level Sets the minimum log level. Valid values are from 0 to 3: INFO = 0, WARNING = 1, LOG_ERROR = 2, LOG_FATAL = 3.
--log-net-log Enables saving net log events to a file and sets the file name to use.
--log-plugin-messages Make plugin processes log their sent and received messages to VLOG(1).
--login-manager Enables Chrome-as-a-login-manager behavior.
--login-password Specifies a password to be used to login (along with login-user).
--login-profile Specifies the profile to use once a chromeos user is logged in.
--login-screen Allows override of oobe for testing - goes directly to the login screen.
--login-user Specifies the user which is already logged in.
--lso-url No description
--main-frame-resizes-are-orientation-changes Resizes of the main frame are the caused by changing between landscape and portrait mode (i.e. Android) so the page should be rescaled to fit
--make-default-browser Makes Chrome default browser
--managed-user-id Sets the managed user ID for any loaded or newly created profile to the given value. Pass an empty string to mark the profile as non-supervised. Used for testing.
--managed-user-sync-token Used to authenticate requests to the Sync service for managed users. Setting this switch also causes Sync to be set up for a managed user.
--manual-enhanced-bookmarks Use to opt-in user into Finch experiment groups.
--manual-enhanced-bookmarks-optout No description
--max-tiles-for-interest-area Max tiles allowed for each tilings interest area.
--max-untiled-layer-height Sets the width and height above which a composited layer will get tiled.
--max-untiled-layer-width No description
--max-unused-resource-memory-usage-percentage The amount of unused resource memory compositor is allowed to keep around.
--media-cache-size Forces the maximum disk space to be used by the media cache, in bytes.
--mediadrm-enable-non-compositing[4] Enables use of non-compositing MediaDrm decoding by default for Encrypted Media Extensions implementation.
--memory-metrics Sample memory usage with high frequency and store the results to the Renderer.Memory histogram. Used in memory tests.
--memory-profile Enables dynamic loading of the Memory Profiler DLL, which will trace all memory allocations during the run.
--message-loop-histogrammer Enables histograming of tasks served by MessageLoop. See about:histograms/Loop for results, which show frequency of messages on each thread, including APC count, object signalling count, etc.
--metrics-recording-only Enables the recording of metrics reports but disables reporting. In contrast to kDisableMetrics, this executes all the code that a normal client would use for reporting, except the report is dropped rather than sent to the server. This is useful for finding issues in the metrics code during UI and performance tests.
--migrate-data-dir-for-sxs[12] Triggers migration of user data directory to another directory specified as a parameter. The migration is done under singleton lock, and sanity checks are made to avoid corrupting the profile. The browser exits after migration is complete.
--mock No description
--multi-profiles Enables multiprofile Chrome.
--mute-audio Mutes audio sent to the audio device so it is not audible during automated testing.
--nacl-broker Value for --type that causes the process to run as a NativeClient broker (used for launching NaCl loader processes on 64-bit Windows).
--nacl-dangerous-no-sandbox-nonsfi Disable sandbox even for non SFI mode. This is particularly unsafe as non SFI NaCl heavily relies on the seccomp sandbox.
--nacl-debug-mask Uses NaCl manifest URL to choose whether NaCl program will be debugged by debug stub. Switch value format: [!]pattern1,pattern2,...,patternN. Each pattern uses the same syntax as patterns in Chrome extension manifest. The only difference is that * scheme matches all schemes instead of matching only http and https. If the value doesn't start with !, a program will be debugged if manifest URL matches any pattern. If the value starts with !, a program will be debugged if manifest URL does not match any pattern.
--nacl-gdb Native Client GDB debugger that will be launched automatically when needed.
--nacl-gdb-script GDB script to pass to the nacl-gdb debugger at startup.
--nacl-loader Value for --type that causes the process to run as a NativeClient loader for SFI mode.
--nacl-loader-nonsfi Value for --type that causes the process to run as a NativeClient loader for non SFI mode.
--net-log-level Sets the base logging level for the net log. Log 0 logs the most data. Intended primarily for use with --log-net-log.
--network-country-iso[4] The telephony region (ISO country code) to use in phone number detection.
--new-avatar-menu Use new avatar menu. When combined with new-profile-management, it simply shows the new profile management avatar menu. Otherwise it shows a redesigned avatar menu with the same functionality as the old one, plus a tutorial card at the top prompting the user to try out the new profile management UI.
--new-profile-management Use new profile management system, including profile sign-out and new choosers.
--new-window Launches URL in new browser window.
--NewProfileManagement No description
--no-default-browser-check Disables the default browser check. Useful for UI/browser tests where we want to avoid having the default browser info-bar displayed.
--no-displaying-insecure-content By default, an https page can load images, fonts or frames from an http page. This switch overrides this to block this lesser mixed-content problem.
--no-events Don't record/playback events when using record & playback.
--no-experiments Disables all experiments set on about:flags. Does not disable about:flags itself. Useful if an experiment makes chrome crash at startup: One can start chrome with --no-experiments, disable the problematic lab at about:flags and then restart chrome without this switch again.
--no-first-run Skip First Run tasks, whether or not it's actually the First Run. Overridden by kForceFirstRun. This does not drop the First Run sentinel and thus doesn't prevent first run from occuring the next time chrome is launched without this flag.
--no-js-randomness Support a separate switch that enables the v8 playback extension. The extension causes javascript calls to Date.now() and Math.random() to return consistent values, such that subsequent loads of the same page will result in consistent js-generated data and XHR requests. Pages may still be able to generate inconsistent data from plugins.
--no-managed-user-acknowledgment-check Disables checking whether we received an acknowledgment when registering a supervised user. Also disables the timeout during registration that waits for the ack. Useful when debugging against a server that does not support notifications.
--no-message-box Disable ui::MessageBox. This is useful when running as part of scripts that do not have a user interface.
--no-network-profile-warning Whether or not the browser should warn if the profile is on a network share. This flag is only relevant for Windows currently.
--no-pings Don't send hyperlink auditing pings
--no-proxy-server Don't use a proxy server, always make direct connections. Overrides any other proxy server flags that are passed.
--no-referrers Don't send HTTP-Referer headers.
--no-sandbox Disables the sandbox for all process types that are normally sandboxed.
--no-service-autorun Disables the service process from adding itself as an autorun process. This does not delete existing autorun registrations, it just prevents the service from registering a new one.
--no-startup-window Does not automatically open a browser window on startup (used when launching Chrome for the purpose of hosting background apps).
--noerrdialogs Suppresses all error dialogs when present.
--notification-center-tray-behavior No description
--num-pac-threads Specifies the maximum number of threads to use for running the Proxy Autoconfig (PAC) script.
--num-raster-threads Number of worker threads used to rasterize content.
--oauth2-client-id No description
--oauth2-client-secret No description
--oobe-guest-session Indicates that a guest session has been started before OOBE completion.
--oobe-skip-postlogin Skips all other OOBE pages after user login.
--oobe-timer-interval Interval at which we check for total time on OOBE.
--open-ash[15] No description
--origin No description
--origin-to-force-quic-on Force use of QUIC for requests to the specified origin.
--original-process-start-time The time that a new chrome process which is delegating to an already running chrome process started. (See ProcessSingleton for more details.)
--osmesa No description
--out-of-process-pdf Enable the out of process PDF plugin.
--overscroll-history-navigation Enables or disables history navigation in response to horizontal overscroll. Set the value to '1' to enable the feature, and set to '0' to disable. Defaults to enabled.
--ozone-dump-file Specify location for image dumps.
--ozone-platform Specify ozone platform implementation to use.
--pack-extension Packages an extension to a .crx installable file from a given directory.
--pack-extension-key Optional PEM private key to use in signing packaged .crx.
--parent-profile Specifies the path to the user data folder for the parent profile.
--password-store[16] Specifies which password store to use (detect, default, gnome, kwallet).
--performance-monitor-gathering Launches PerformanceMonitor at startup, which will gather statistics about Chrome's CPU and memory usage, page load times, startup times, and network usage, and will also store information about events which may be of interest, such as extension-related occurrences and crashes. Optionally, this may be run with an integer value representing the interval between the timed metric gatherings, measured in seconds (if invalid or not provided, the default interval is used).
--playback-mode Read previously recorded data from the cache. Only cached data is read. See kRecordMode.
--plugin Causes the process to run as a plugin subprocess.
--plugin-launcher Specifies a command that should be used to launch the plugin process. Useful for running the plugin process through purify or quantify. Ex: --plugin-launcher="path\to\purify /Run=yes"
--plugin-path Tells the plugin process the path of the plugin to load
--plugin-startup-dialog Causes the plugin process to display a dialog on launch.
--plugins-metadata-server-url[17] Specifies a custom URL for fetching plug-ins metadata. Used for testing.
--power-stub Specifies power stub behavior: 'cycle=2' - Cycles power states every 2 seconds. See FakeDBusThreadManager::ParsePowerCommandLineSwitch for full details.
--ppapi Argument to the process type that indicates a PPAPI plugin process type.
--ppapi-broker Argument to the process type that indicates a PPAPI broker process type.
--ppapi-flash-args "Command-line" arguments for the PPAPI Flash; used for debugging options.
--ppapi-flash-path Use the PPAPI (Pepper) Flash found at the given path.
--ppapi-flash-version Report the given version for the PPAPI (Pepper) Flash. The version should be numbers separated by '.'s (e.g., "12.3.456.78"). If not specified, it defaults to "10.2.999.999".
--ppapi-in-process Runs PPAPI (Pepper) plugins in-process.
--ppapi-plugin-launcher Like kPluginLauncher for PPAPI plugins.
--ppapi-startup-dialog Causes the PPAPI sub process to display a dialog on launch. Be sure to use --no-sandbox as well or the sandbox won't allow the dialog to display.
--precache-config-settings-url The URL that provides the PrecacheConfigurationSettings proto.
--precache-manifest-url-prefix Precache manifests will be served from URLs with this prefix.
--prefetch-search-results Triggers prerendering of search base page to prefetch results for the typed omnibox query. Only has an effect when prerender is enabled.
--prerender Controls speculative prerendering of pages, and content prefetching. Both are dispatched from <link rel=prefetch href=...> elements.
--prerender-from-omnibox Triggers prerendering of pages from suggestions in the omnibox. Only has an effect when Instant is either disabled or restricted to search, and when prerender is enabled.
--privet-ipv6-only Use IPv6 only for privet HTTP.
--process-per-site Runs a single process for each site (i.e., group of pages from the same registered domain) the user visits. We default to using a renderer process for each site instance (i.e., group of pages from the same registered domain with script connections to each other).
--process-per-tab Runs each set of script-connected tabs (i.e., a BrowsingInstance) in its own renderer process. We default to using a renderer process for each site instance (i.e., group of pages from the same registered domain with script connections to each other).
--product-version Outputs the product version information and quit. Used as an internal api to detect the installed version of Chrome on Linux.
--profile-directory Selects directory of profile to associate with the first browser launched.
--profiler-timing Configure whether chrome://profiler will contain timing information. This option is enabled by default. A value of "0" will disable profiler timing, while all other values will enable it.
--profiling-at-start Starts the sampling based profiler for the browser process at startup. This will only work if chrome has been built with the gyp variable profiling=1. The output will go to the value of kProfilingFile.
--profiling-file Specifies a location for profiling output. This will only work if chrome has been built with the gyp variable profiling=1. {pid} if present will be replaced by the pid of the process. {count} if present will be incremented each time a profile is generated for this process. The default is chrome-profile-{pid}.
--profiling-flush Controls whether profile data is periodically flushed to a file. Normally the data gets written on exit but cases exist where chrome doesn't exit cleanly (especially when using single-process). A time in seconds can be specified.
--profiling-output-file Specifies a path for the output of task-level profiling which can be loaded and viewed in about:profiler.
--promo-server-url Specifies a custom URL for fetching NTP promo data.
--proxy-auto-detect Forces proxy auto-detection.
--proxy-bypass-list Specifies a list of hosts for whom we bypass proxy settings and use direct connections. Ignored if --proxy-auto-detect or --no-proxy-server are also specified. This is a comma-separated list of bypass rules. See: "net/proxy/proxy_bypass_rules.h" for the format of these rules.
--proxy-pac-url Uses the pac script at the given URL
--proxy-server Uses a specified proxy server, overrides system settings. This switch only affects HTTP and HTTPS requests.
--quic-max-packet-length Specifies the maximum length for a QUIC packet.
--quic-version Specifies the version of QUIC to use.
--record-mode Chrome supports a playback and record mode. Record mode saves *everything* to the cache. Playback mode reads data exclusively from the cache. This allows us to record a session into the cache and then replay it at will. See also kPlaybackMode.
--reduce-security-for-testing Enables more web features over insecure connections. Designed to be used for testing purposes only.
--register-pepper-plugins Register Pepper plugins (see pepper_plugin_list.cc for its format).
--relaunch-shortcut[2] Relaunches metro Chrome on Windows 8 and higher using a given shortcut.
--relauncher[6] A process type (switches::kProcessType) that relaunches the browser. See chrome/browser/mac/relauncher.h.
--remote-debugging-port Enables remote debug over HTTP on the specified port.
--remote-debugging-socket-name[4] Enables remote debug over HTTP on the specified socket name.
--renderer Causes the process to run as renderer instead of as browser.
--renderer-assert-test Causes the renderer process to throw an assertion on launch.
--renderer-cmd-prefix On POSIX only: the contents of this flag are prepended to the renderer command line. Useful values might be "valgrind" or "xterm -e gdb --args".
--renderer-print-preview Enables print preview in the renderer. This flag is generated internally by Chrome and does nothing when directly passed to the browser.
--renderer-process-limit Overrides the default/calculated limit to the number of renderer processes. Very high values for this setting can lead to high memory/resource usage or instability.
--renderer-startup-dialog Causes the renderer process to display a dialog on launch.
--requirements No description
--reset-app-list-install-state If set, the app list will forget it has been installed on startup. Note this doesn't prevent the app list from running, it just makes Chrome think the app list hasn't been enabled (as in kEnableAppList) yet.
--reset-variation-state Forces a reset of the one-time-randomized FieldTrials on this client, also known as the Chrome Variations state.
--restore-last-session Indicates the last session should be restored on startup. This overrides the preferences value and is primarily intended for testing. The value of this switch is the number of tabs to wait until loaded before 'load completed' is sent to the ui_test.
--safebrowsing-disable-auto-update If present, safebrowsing only performs update when SafeBrowsingProtocolManager::ForceScheduleNextUpdate() is explicitly called. This is used for testing only.
--safebrowsing-disable-download-protection TODO(lzheng): Remove this flag once the feature works fine (http://crbug.com/74848). Disables safebrowsing feature that checks download url and downloads content's hash to make sure the content are not malicious.
--safebrowsing-disable-extension-blacklist Disables safebrowsing feature that checks for blacklisted extensions.
--safebrowsing-disable-side-effect-free-whitelist Disables safebrowsing feature that provides a side-effect free whitelist.
--safebrowsing-download-feedback-url URL to send safebrowsing download feedback reports to.
--sandbox-ipc Causes the process to run as a sandbox IPC subprocess.
--save-page-as-mhtml Disable saving pages as HTML-only, disable saving pages as HTML Complete (with a directory of sub-resources). Enable only saving pages as MHTML. See http://crbug.com/120416 for how to remove this switch.
--scroll-end-effect Enables or disables scroll end effect in response to vertical overscroll. Set the value to '1' to enable the feature, and set to '0' to disable. Defaults to disabled.
--service No description
--set-token Sets a token in the token service, for testing.
--shill-stub Specifies network stub behavior. If this switch is not specified, ethernet, wifi and vpn are enabled by default, and transitions occur instantaneously. Multiple options can be comma separated (no spaces). See FakeShillManagerClient::SetInitialNetworkState for implementation. Examples: 'wifi=on' - A wifi network is initially connected ('1' also works) 'wifi=off' - Wifi networks are all initially disconnected ('0' also works) 'wifi=disabled' - Wifi is initially disabled 'wifi=none' - Wifi is unavailable 'wifi=portal' - Wifi connection will be in Portal state 'cellular=1' - Cellular is initially connected 'interactive=3' - Interactive mode, connect/scan/etc requests take 3 secs
--show-app-list If true the app list will be shown.
--show-autofill-type-predictions Annotates forms with Autofill field type predictions.
--show-component-extension-options Makes component extensions appear in chrome://settings/extensions.
--show-composited-layer-borders Renders a border around compositor layers to help debug and study layer compositing.
--show-fps-counter Draws a FPS indicator
--show-icons See kHideIcons.
--show-layer-animation-bounds Renders a border that represents the bounding box for the layer's animation.
--show-nonoccluding-rects Show rects in the HUD wherever something is not known to be drawn opaque and is not considered to be occluding the pixels behind it.
--show-occluding-rects Show rects in the HUD wherever something is known to be drawn opaque and is considered occluding the pixels behind it.
--show-paint-rects Visibly render a border around paint rects in the web page to help debug and study painting behavior.
--show-property-changed-rects Show rects in the HUD around layers whose properties have changed.
--show-replica-screenspace-rects Show rects in the HUD around the screen-space transformed bounds of every layer's replica, when they have one.
--show-screenspace-rects Show rects in the HUD around the screen-space transformed bounds of every layer.
--show-surface-damage-rects Show rects in the HUD around damage as it is recorded into each render surface.
--signin-process Marks a renderer as the signin process.
--silent-debugger-extension-api Does not show an infobar when an extension attaches to a page using chrome.debugger page. Required to attach to extension background pages.
--silent-dump-on-dcheck Changes the DCHECKS to dump memory and continue instead of displaying error dialog. This is valid only in Release mode when gyp dcheck_always_on=1.
--silent-launch Causes Chrome to launch without opening any windows by default. Useful if one wishes to use Chrome as an ash server.
--simulate-critical-update Simulates a critical update being available.
--simulate-outdated Simulates that current version is outdated.
--simulate-outdated-no-au Simulates that current version is outdated and auto-update is off.
--simulate-touch-screen-with-mouse Map mouse input events into touch gesture events. Useful for debugging touch gestures without needing a touchscreen.
--simulate-upgrade Simulates an update being available.
--single-process Runs the renderer and plugins in the same process as the browser
--site-per-process Experimentally enforces a one-site-per-process security policy. All cross-site navigations force process swaps, and we can restrict a renderer process's access rights based on its site. For details, see: http://www.chromium.org/developers/design-documents/site-isolation Unlike --enable-strict-site-isolation (which allows cross-site iframes), this flag does not affect which cookies are attached to cross-site requests. Support is being added to render cross-site iframes in a different process than their parent pages.
--skip-gpu-data-loading Skip gpu info collection, blacklist loading, and blacklist auto-update scheduling at browser startup time. Therefore, all GPU features are available, and about:gpu page shows empty content. The switch is intended only for layout tests. TODO(gab): Get rid of this switch entirely.
--slow-down-raster-scale-factor Re-rasters everything multiple times to simulate a much slower machine. Give a scale factor to cause raster to take that many times longer to complete, such as --slow-down-raster-scale-factor=25.
--sms-test-messages Sends test messages on first call to RequestUpdate (stub only).
--spelling-service-feedback-interval-seconds Specifies the number of seconds between sending batches of feedback to spelling service. The default is 30 minutes. The mininum is 5 seconds. This switch is for temporary testing only. TODO(rouslan): Remove this flag when feedback testing is complete. Revisit by August 2013.
--spelling-service-feedback-url Specifies the URL where spelling service feedback data will be sent instead of the default URL. This switch is for temporary testing only. TODO(rouslan): Remove this flag when feedback testing is complete. Revisit by August 2013.
--spy Enables the mojo spy, which acts as a man-in-the-middle inspector for message pipes and other activities. This is work in progress.
--ssl-version-max Specifies the maximum SSL/TLS version ("ssl3", "tls1", "tls1.1", or "tls1.2").
--ssl-version-min Specifies the minimum SSL/TLS version ("ssl3", "tls1", "tls1.1", or "tls1.2").
--stable-release-mode This makes us disable some web-platform runtime features so that we test content_shell as if it was a stable release. It is only followed when kDumpRenderTree is set. For the features' level, see http://dev.chromium.org/blink/runtime-enabled-features.
--start No description
--start-fullscreen Specifies if the browser should start in fullscreen mode, like if the user had pressed F11 right after startup.
--start-maximized Starts the browser maximized, regardless of any previous settings.
--stop No description
--strict-layer-property-change-checking Check that property changes during paint do not occur.
--stub-cros-settings Indicates that a stub implementation of CrosSettings that stores settings in memory without signing should be used, treating current user as the owner. This option is for testing the chromeos build of chrome on the desktop only.
--suggestion-ntp-filter-width Controls the width of time-of-day filters on the 'suggested' ntp page, in minutes.
--suggestion-ntp-gaussian-filter Enables a normal distribution dropoff to the relevancy of visits with respect to the time of day.
--suggestion-ntp-linear-filter Enables a linear dropoff to the relevancy of visits with respect to the time of day.
--supports-dual-gpus Indicates whether the dual GPU switching is supported or not.
--swiftshader No description
--swiftshader-path No description
--sync-allow-insecure-xmpp-connection Allows insecure XMPP connections for sync (for testing).
--sync-deferred-startup-timeout-seconds Allows overriding the deferred init fallback timeout.
--sync-disable-deferred-startup Enables deferring sync backend initialization until user initiated changes occur.
--sync-enable-get-update-avoidance Enables feature to avoid unnecessary GetUpdate requests.
--sync-invalidate-xmpp-login Invalidates any login info passed into sync's XMPP connection.
--sync-notification-host-port Overrides the default host:port used for sync notifications.
--sync-short-initial-retry-override This flag causes sync to retry very quickly (see polling_constants.h) the when it encounters an error, as the first step towards exponential backoff.
--sync-throw-unrecoverable-error Makes the sync code to throw an unrecoverable error after initialization. Useful for testing unrecoverable error scenarios.
--sync-touchmove No description
--sync-try-ssltcp-first-for-xmpp Tries to connect to XMPP using SSLTCP first (for testing).
--sync-url Overrides the default server used for profile sync.
--tab-capture-downscale-quality Upscale defaults to "good".
--tab-capture-upscale-quality Scaling quality for capturing tab. Should be one of "fast", "good" or "best". One flag for upscaling, one for downscaling. Upscale defaults to "best".
--test-auto-update-ui Enables testing for auto update UI.
--test-child-process When running certain tests that spawn child processes, this switch indicates to the test framework that the current process is a child process.
--test-gl-lib Flag used for Linux tests: for desktop GL bindings, try to load this GL library first, but fall back to regular library if loading fails.
--test-name Passes the name of the current running automated test to Chrome.
--test-sandbox Runs the security test for the renderer sandbox.
--test-type Type of the current test harness ("browser" or "ui").
--testing-fixed-http-port Allows for forcing socket connections to http/https to use fixed ports.
--testing-fixed-https-port No description
--top-controls-height The height of the movable top controls.
--top-controls-hide-threshold Percentage of the top controls need to be hidden before they will auto hide.
--top-controls-show-threshold Percentage of the top controls need to be shown before they will auto show.
--touch-ack-timeout-delay-ms Enable timeout-based touch event cancellation if a touch ack is delayed. If unspecified, touch timeout behavior will be disabled.
--touch-calibration[18] The calibration factors given as "<left>,<right>,<top>,<bottom>".
--touch-devices[19] Tells chrome to interpret events from these devices as touch events. Only available with XInput 2 (i.e. X server 1.8 or above). The id's of the devices can be retrieved from 'xinput list'.
--touch-events Enable support for touch events.
--touch-optimized-ui Enables UI changes that make it easier to use with a touchscreen. WARNING: Do not check this flag directly when deciding what UI to draw, instead you must call ui::GetDisplayLayout
--touch-scrolling-mode No description
--touchcancel No description
--trace-shutdown Causes TRACE_EVENT flags to be recorded beginning with shutdown. Optionally, can specify the specific trace categories to include (e.g. --trace-shutdown=base,net) otherwise, all events are recorded. --trace-shutdown-file can be used to control where the trace log gets stored to since there is otherwise no way to access the result.
--trace-shutdown-file If supplied, sets the file which shutdown tracing will be stored into, if omitted the default will be used "chrometrace.log" in the current directory. Has no effect unless --trace-shutdown is also supplied. Example: --trace-shutdown --trace-shutdown-file=/tmp/trace_event.log
--trace-startup Causes TRACE_EVENT flags to be recorded from startup. Optionally, can specify the specific trace categories to include (e.g. --trace-startup=base,net) otherwise, all events are recorded. Setting this flag results in the first call to BeginTracing() to receive all trace events since startup. In Chrome, you may find --trace-startup-file and --trace-startup-duration to control the auto-saving of the trace (not supported in the base-only TraceLog component).
--trace-startup-duration Sets the time in seconds until startup tracing ends. If omitted a default of 5 seconds is used. Has no effect without --trace-startup, or if --startup-trace-file=none was supplied.
--trace-startup-file If supplied, sets the file which startup tracing will be stored into, if omitted the default will be used "chrometrace.log" in the current directory. Has no effect unless --trace-startup is also supplied. Example: --trace-startup --trace-startup-file=/tmp/trace_event.log As a special case, can be set to 'none' - this disables automatically saving the result to a file and the first manually recorded trace will then receive all events since startup.
--trace-to-console Sends a pretty-printed version of tracing info to the console.
--translate-script-url Overrides the default server used for Google Translate.
--translate-security-origin Overrides security-origin with which Translate runs in an isolated world.
--trusted-spdy-proxy Disables same-origin check on HTTP resources pushed via a SPDY proxy. The value is the host:port of the trusted proxy.
--try-chrome-again Experimental. Shows a dialog asking the user to try chrome. This flag is to be used only by the upgrade process.
--try-supported-channel-layouts[2] Instead of always using the hardware channel layout, check if a driver supports the source channel layout. Avoids outputting empty channels and permits drivers to enable stereo to multichannel expansion. Kept behind a flag since some drivers lie about supported layouts and hang when used. See http://crbug.com/259165 for more details.
--type The value of this switch determines whether the process is started as a renderer or plugin host. If it's empty, it's the browser.
--ui-disable-partial-swap Disable partial swap which is needed for some OpenGL drivers / emulators.
--ui-disable-threaded-compositing No description
--ui-enable-impl-side-painting No description
--ui-enable-map-image No description
--ui-show-fps-counter No description
--ui-show-layer-animation-bounds No description
--ui-show-layer-borders No description
--ui-show-nonoccluding-rects No description
--ui-show-occluding-rects No description
--ui-show-paint-rects No description
--ui-show-property-changed-rects No description
--ui-show-replica-screenspace-rects No description
--ui-show-screenspace-rects No description
--ui-show-surface-damage-rects No description
--uninstall No description
--uninstall-extension Uninstalls an extension with the specified extension id.
--unlimited-storage Overrides per-origin quota settings to unlimited storage for any apps/origins. This should be used only for testing purpose.
--use-cras[20] Use CRAS, the ChromeOS audio server.
--use-discardable-memory Overrides the preferred discardable memory implementation.
--use-fake-device-for-media-stream Use fake device for MediaStream to replace actual camera and microphone.
--use-fake-ui-for-media-stream Bypass the media stream infobar by selecting the default device for media streams (e.g. WebRTC). Works with --use-fake-device-for-media-stream.
--use-file-for-fake-video-capture Use a raw video file as fake video capture device.
--use-gl Select which implementation of GL the GPU process should use. Options are: desktop: whatever desktop OpenGL the user has installed (Linux and Mac default). egl: whatever EGL / GLES2 the user has installed (Windows default - actually ANGLE). osmesa: The OSMesa software renderer.
--use-gpu-in-tests Use hardware gpu, if available, for tests.
--use-mobile-user-agent Set when Chromium should use a mobile user agent.
--use-mock-keychain[6] No description
--use-simple-cache-backend Uses experimental simple cache backend if possible.
--use-spdy Uses Spdy for the transport protocol instead of HTTP. This is a temporary testing flag.
--use-spelling-suggestions Disables use of the spelling web service and only provides suggestions. This will only work if asynchronous spell checking is not disabled.
--user-agent A string used to override the default user agent with a custom one.
--user-data-dir Specifies the user data directory, which is where the browser will look for all of its state.
--utility Causes the process to run as a utility subprocess.
--utility-allowed-dir The utility process is sandboxed, with access to one directory. This flag specifies the directory that can be accessed.
--utility-cmd-prefix On POSIX only: the contents of this flag are prepended to the utility process command line. Useful values might be "valgrind" or "xterm -e gdb --args".
--utility-enable-mdns Allows MDns to access network in sandboxed process.
--utility-run-elevated No description
--v Gives the default maximal active V-logging level; 0 is the default. Normally positive values are used for V-logging levels.
--validate-crx Examines a .crx for validity and prints the result.
--validate-input-event-stream In debug builds, asserts that the stream of input events is valid.
--variations-server-url Specifies a custom URL for the server which reports variation data to the client. Specifying this switch enables the Variations service on unofficial builds. See variations_service.cc.
--version Prints version information and quits.
--video-threads Set number of threads to use for video decoding.
--viewer-connect[2] Requests that Chrome connect to the running Metro viewer process.
--viewer-launch-via-appid[2] Requests that Chrome launch the Metro viewer process via the given appid (which is assumed to be registered as default browser) and synchronously connect to it.
--vmodule Gives the per-module maximal V-logging levels to override the value given by --v. E.g. "my_module=2,foo*=3" would change the logging level for all code in source files "my_module.*" and "foo*.*" ("-inl" suffixes are also disregarded for this matching). Any pattern containing a forward or backward slash will be tested against the whole pathname and not just the module. E.g., "*/foo/bar/*=2" would change the logging level for all code in source files under a "foo/bar" directory.
--wait-for-debugger Will wait for 60 seconds for a debugger to come to attach to the process.
--wait-for-debugger-children Will add kWaitForDebugger to every child processes. If a value is passed, it will be used as a filter to determine if the child process should have the kWaitForDebugger flag passed on or not.
--wait-for-mutex[2] Waits for the given handle to be signaled before relaunching metro Chrome on Windows 8 and higher.
--wallet-secure-service-url Secure service URL for Online Wallet service. Used as the base url to escrow credit card numbers.
--wallet-service-url Service URL for Online Wallet service. Used as the base url for Online Wallet API calls.
--wallet-service-use-sandbox Use the sandbox Online Wallet service URL (for developer testing).
--waveout-buffers[2] Number of buffers to use for WaveOut.
--webgl-command-buffer-size-kb Overrides the amount of shared memory the webgl command buffer allocates
--whitelisted-extension-id Adds the given extension ID to all the permission whitelists.
--window-position Specify the initial window position: --window-position=x,y
--window-size Specify the initial window size: --window-size=w,h
--winhttp-proxy-resolver Uses WinHTTP to fetch and evaluate PAC scripts. Otherwise the default is to use Chromium's network stack to fetch, and V8 to evaluate.
--wm-window-animations-disabled If present animations are disabled.
--worker Causes the process to run as a worker subprocess.
--zygote Causes the process to run as a renderer zygote.

How to use a command line switch?

The Chromium Team has made a page on which they briefly explain how to use these switches.

Conditions

These are rather technical. While most are pretty self-explanatory, keep in mind that any condition means that a switch isn't always available.

  1. The constants OS_FREEBSD, OS_LINUX and OS_SOLARIS must be defined.
  2. The constant OS_WIN must be defined.
  3. The constant OS_CHROMEOS must be defined.
  4. The constant OS_ANDROID must be defined.
  5. The constant OFFICIAL_BUILD must not be defined, and the constant ENABLE_FULL_PRINTING must be defined.
  6. The constant OS_MACOSX must be defined.
  7. The constant OS_IOS must not be defined, and the constant OS_MACOSX must be defined.
  8. The constant ENABLE_WEBRTC must be defined.
  9. The constant GOOGLE_CHROME_BUILD must be defined.
  10. The constant OS_POSIX must be defined.
  11. The constant GOOGLE_CHROME_BUILD must not be defined.
  12. The constant OS_CHROMEOS must not be defined, and the constant OS_LINUX must be defined.
  13. The constants OS_ANDROID and OS_IOS must be defined.
  14. The constant NDEBUG must not be defined.
  15. The constant USE_ASH must be defined.
  16. The constants OS_CHROMEOS and OS_MACOSX must not be defined, and the constant OS_POSIX must be defined.
  17. The constant ENABLE_PLUGIN_INSTALLATION must be defined.
  18. The constant USE_XI2_MT must be defined.
  19. The constant OS_LINUX must be defined.
  20. The constant USE_CRAS must be defined.