A quick way to launch Google Chrome or Chromium from the command line with flags / switches.
"Flags are used to enable particular features or modify otherwise default functionality."
On OS X:
open /Applications/Google\ Chrome.app --app --fullscreen --kioskOn Linux:
chromium-browser --app --fullscreen --kioskOn Windows:
start chrome --app --fullscreen --kioskA complete list of Flags can be found at:
http://peter.sh/examples/?/chromium-switches.html
--action-box
Enables or disables the "action box" UI in the toolbar.
--allow-cross-origin-auth-prompt
Allows third-party content included on a page to prompt for a HTTP basic auth username/password pair.
--allow-file-access
On ChromeOS, file:access is disabled except for certain whitelisted directories. This switch re-enables file:for testing.
--allow-http-background-page
Allows non-https URL for background-page for hosted apps.
--allow-nacl-socket-api
Allows the browser to load extensions that lack a modern manifest when that would otherwise be forbidden.
--allow-outdated-plugins
Don't block outdated plugins.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-scripting-gallery
Allows injecting extensions and user scripts on the extensions gallery site. Normally prevented for security reasons, but can be useful for automation testing of the gallery.
--always-authorize-plugins
Prevents Chrome from requiring authorization to run certain widely installed but less commonly used plug-ins.
--app-id
Specifies that the extension-app with the specified id should be launched according to its configuration.
--app
Specifies that the associated value should be launched in "application" mode.
--apps-devtool
Flag to enable apps_devtool app.
--app-window-size
Specifies the initial size for application windows launched with --app. --app-window-size=w,h
--app-notify-channel-server-url
A URL for the server which assigns channel ids for server pushed app notifications.
--apps-checkout-url
Overrides the apps checkout URL, which is used to determine when to expose some private APIs.
--apps-gallery-download-url
The URL that the webstore APIs download extensions from. Note: the URL must contain one %s (ie. for a replacable string) for the extension ID.
--apps-gallery-url
A setting to cause extension/app installs from the webstore skip the normal confirmation dialog. A value of 'accept' means to always act as if the dialog was accepted, and 'cancel' means to always act as if the dialog was cancelled.
--apps-gallery-update-url
The update url used by gallery/webstore extensions.
--app-mode-oauth-token
Value of OAuth2 refresh token for --force-app-mode.
--apps-new-install-bubble
Whether to always use the new app install bubble when installing an app.
--apps-no-throb
Disable throbber for extension apps.
--auth-schemes
Whitelist of servers that Negotiate will generate delegated Kerberos tickets for.
--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-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.
--autofill-service-url
Flag used to tell Chrome the base url of the Autofill service.
--automation-channel
The value of this switch tells the app to listen for and broadcast automation-related messages on IPC channel with the given ID.
--check-for-update-interval
Causes the automation provider to reinitialize its IPC channel instead of shutting down when a client disconnects.
--chrome-frame-shutdown-delay
Checks the cloud print connector policy, informing the service process if the policy is set to disallow the connector, then quits.
--chrome-version
Tells chrome to load the specified version of chrome.dll on Windows. If this version cannot be loaded, Chrome will exit.
--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.
--cloud-print-delete-file
Used with kCloudPrintFile. Tells Chrome to delete the file when finished displaying the print dialog.
--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-print-ticket
Used with kCloudPrintFile to specify a JSON print ticket for the resulting print job. Defaults to null if unspecified.
--cloud-print-job-title
Used with kCloudPrintFile to specify a title for the resulting print job.
--cloud-print-proxy-id
The unique id to be used for this cloud print proxy instance.
--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 (see enable-cloud-print).
--component-updater-debug
Comma-separated options to troubleshoot the component updater. Only valid for the browser process.
--conflicting-modules-check
Causes the browser process to inspect loaded and registered DLLs for known conflicts and warn the user.
--new-content-settings
Toggles a new version of the content settings dialog in options.
--country
The Country we should use. This is normally obtained from the operating system during first run and cached in the preferences afterwards. This is a string value, the 2 letter code from ISO 3166-1.
--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._
--debug-enable-frame-toggle
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.
--debug-packed-apps
Adds debugging entries such as Inspect Element to context menus of packed apps.
--debug-print
Enables support to debug printing subsystem.
--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.
--disable-async-dns
Disables the experimental asynchronous DNS client.
--disable-background-mode
Disables CNAME lookup of the host when generating the Kerberos SPN for a Negotiate challenge. See HttpAuthHandlerNegotiate::CreateSPN for more 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-bundled-ppapi-flash
Disables the bundled PPAPI version of Flash.
--disable-component-update
Disables the bookmark autocomplete provider (BookmarkProvider).
--disable-crl-sets
Disables establishing certificate revocation information by downloading a set of CRLs rather than performing on-line checks.
--disable-custom-jumplist
Disables the custom JumpList on Windows 7.
--disable-default-apps
Disables installation of default apps on first run. This is used during automated testing.
--disable-dhcp-wpad
Disables retrieval of PAC URLs from DHCP as per the WPAD standard.
--disable-extensions
Disable extensions.
--disable-instant-extended-api
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-ipv6
Disables improved SafeBrowsing download protection.
--disable-ip-pooling
Disables IP Pooling within the networks stack (SPDY only). When a connection is needed for a domain which shares an IP with an existing connection, attempt to use the existing connection.
--disable-ntp-other-sessions-menu
Disables the menu on the NTP for accessing sessions from other devices.
--disable-popup-blocking
Disable pop-up blocking.
--disable-preconnect
Disable speculative TCP/IP preconnection.
--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-restore-session-state
Prevents the URLs of BackgroundContents from being remembered and re-launched when the browser restarts.
--disable-sync
Disables throttling prints initiated by scripts.
--disable-sync-app-settings
Disables syncing of app settings.
--disable-sync-apps
Disables syncing of apps.
--disable-sync-app-notifications
Disable syncing app notifications.
--disable-sync-autofill
Disables syncing of autofill.
--disable-sync-autofill-profile
Disables syncing of autofill Profile.
--disable-sync-bookmarks
Disables syncing of bookmarks.
--disable-sync-dictionary
Disables syncing of dictionary.
--disable-sync-extension-settings
Disables syncing extension settings.
--disable-sync-extensions
Disables syncing of extensions.
--disable-sync-passwords
Disables syncing of history delete directives.
--disable-sync-preferences
Disables syncing of preferences.
--disable-sync-search-engines
Disable syncing custom search engines.
--disable-sync-tabs
Disables syncing browser sessions. Will override kEnableSyncTabs.
--disable-sync-themes
Disables syncing of themes.
--disable-sync-typed-urls
Disables syncing browser typed urls.
--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-tls-channel-id
Disables TLS Channel ID extension.
--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-web-sockets
Disable Web Sockets support.
--disable-webaudio
_Disable web audio API
--disable-webgl
Disable WebGL support.
--disk-cache-dir
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".
--disk-cache-size
Forces the maximum disk space to be used by the disk cache, in bytes.
--dns-log-details
Undocumented, but self explanatory. Log DNS details.
--dns-prefetch-disable
Disables prefetching of DNS information.
--dump-histograms-on-exit
Dump any accumualted histograms to the log when browser terminates (requires logging to be enabled to really do anything). Used by developers and test scripts.
--enable-async-dns
Enables the experimental asynchronous DNS client.
--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-benchmarking
Enables the benchmarking extensions.
--enable-cloud-print-proxy
This applies only when the process type is "service". Enables the Cloud Print Proxy component within the service process.
--enable-contacts
Enables fetching the user's contacts from Google and showing them in the Chrome OS apps list.
--enable-crxless-web-apps
Enables web developers to create apps for Chrome without using crx packages.
--enable-desktop-guest-mode
Enables desktop guest mode.
--enable-devtools-experiments
If true devtools experimental settings are enabled.
--enable-interactive-autocomplete
Enables an interactive autocomplete UI and a way to invoke this UI from WebKit by enabling HTMLFormElement#requestAutocomplete (and associated autocomplete events and logic).
--easy-off-store-extension-install
Enables extensions to be easily installed from sites other than the web store. Without this flag, they can still be installed, but must be manually dragged onto chrome://extensions/.
--enable-extension-activity-ui
Enables extension APIs that are in development.
--extensions-in-action-box
Enables or disables showing extensions in the action box.
--enable-file-cookies
By default, cookies are not allowed on file://. They are needed for testing, for example page cycler and layout tests.
--enable-google-now-integration
Enables Google Now integration.
--enable-instant-extended-api
Enable Instant extended API.
--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-ipc-fuzzing
_Enables the IPC fuzzer for reliability testing
--enable-ip-pooling
Enables IP Pooling within the networks stack (SPDY only). When a connection is needed for a domain which shares an IP with an existing connection, attempt to use the existing connection.
--enable-managed-users
Enables support for user profiles that are managed by another user and can have restrictions applied.
--enable-memory-info
Allows reporting memory info (JS heap size) to page.
--enable-memory-internals-ui
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-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.
--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.
--enable-nacl-exception-handling
Enables hardware exception handling via debugger process.
--enable-native-messaging
Enables the native messaging extensions API.
--enable-net-benchmarking
Enables the network-related benchmarking extensions.
--enable-new-autofill-ui
Enables the new Autofill UI, which is part of the browser process rather than part of the renderer process.
--enable-npn
Enables NPN and SPDY. In case server supports SPDY, browser will use SPDY.
--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-panels
Enables panels (always on-top docked pop-up windows).
--enable-panel-stacking
Enables panel stacking support.
--enable-password-generation
Enables password generation when we detect that the user is going through account creation.
--enable-pnacl
Enables the installation and usage of Portable Native Client.
--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 extraction in the omnibox.
--enable-quic
Enables support for the QUIC protocol. This is a temporary testing flag.
--enable-sdch
Enables content settings based on host and plug-in in the user preferences.
--enable-spdy3
Enable SPDY/3. This is a temporary testing flag.
--enable-spdy-credential-frames
Enable SPDY CREDENTIAL frame support. This is a temporary testing flag.
--enable-spelling-auto-correct
Enables auto correction for misspelled words.
--enable-stacked-tab-strip
Enables the stacked tabstrip.
--enable-suggestions-ntp
Enables experimental suggestions pane in New Tab page.
--enable-tab-groups-context-menu
Enables synced notifications.
--enable-watchdog
Enables Alternate-Protocol when the port is user controlled (> 1024).
--enable-websocket-over-spdy
Uses WebSocket over SPDY.
--explicitly-allowed-ports
Explicitly allows additional ports using a comma-separated list of port numbers.
--event-page-idle-time
The time in seconds that an extension event page can be idle before it is shut down.
--event-page-unloading-time
The time in seconds that an extension event page has between being notified of its impending unload and that unload happening.
--extension-process
Marks a renderer as extension process.
--extensions-update-frequency
Frequency in seconds for Extensions auto-update.
--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.
--flag-switches-begin / --flag-switches-end
These two flags are added around the switches chrome:flags adds to the command line. This is useful to see which switches were added by chrome:flags on chrome:version. They don't have any effect.
--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.
--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-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-load-cloud-policy
Tries to load cloud policy for every signed in user, regardless of whether they are a dasher user or not. Used to allow any GAIA account to be used for testing the cloud policy framework.
--gaia-profile-info
Enables using GAIA information to populate profile name and icon.
--google-search-domain-check-url
Specifies an alternate URL to use for retrieving the search domain for Google. Useful for testing.
--gssapi-library-name
Specifies a custom name for the GSSAPI library to load.
--help / --h
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.
--disable-full-history-sync
Disables full history sync.
--enable-full-history-sync
Enables full history sync (not just typed URLs) for signed-in users.
--enable-grouped-history
Enables grouping websites by domain and filtering them by period.
--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-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)._
--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.
--hsts-hosts
_Takes the JSON-formatted HSTS specification and loads it as if it were a preloaded HSTS entry. Takes precedence over both website-specified rules and built-in rules. The JSON format is the same as that persisted in <profile_dir>/Default/TransportSecurity
--import
_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, kInstantURL, kSbURLPrefix,kSyncServiceURL, kWalletServiceUrl, etc.)
--import-from-file
Performs bookmark importing from an HTML file. The value associated with this setting encodes the file path. It may be used jointly with kImport.
--incognito
Causes the browser to launch directly in incognito mode.
--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.
--instant-url
URL to use for instant. If specified this overrides the url from the TemplateURL.
--keep-alive-for-test
Used for testing - keeps browser alive after last browser window closes.
--kiosk
Enable Kiosk mode.
--kiosk-printing
Print automatically in kiosk mode. 'kKioskMode' must be set as well.
--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.
--disable-cloud-policy-on-signin
If present, disables the loading and application of cloud policy for signed-in users.
--load-extension
Loads an extension from the specified directory.
--load-opencryptoki
Loads the opencryptoki library into NSS at startup. This is only needed temporarily for developers who need to work on WiFi/VPN certificate code.
--log-net-log
Enables displaying net log events on the command line, or writing the events to a separate file if a file name is given.
--uninstall-extension
Uninstalls an extension with the specified extension id.
--managed
Starts the browser in managed mode.
--make-default-browser
_Makes Chrome default browser
--media-cache-size
Forces the maximum disk space to be used by the media cache, in bytes.
--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.
--multi-profiles
Enables multiprofile Chrome.
--nacl-gdb
Native Client GDB debugger for loader. It needs switches calculated at run time in order to work correctly. That's why NaClLoadCmdPrefix flag can't be used.
--nacl-gdb-script
GDB script to pass to the nacl-gdb debugger at startup.
--nacl-loader-cmd-prefix
_On POSIX only: the contents of this flag are prepended to the nacl-loader command line. Useful values might be valgrind or xterm -e gdb --args.
_--native-messaging-hosts
List of native messaging hosts outside of the default location. Used for tests. The value must be comma-separate lists of key-value pairs separated equal sign. E.g. host1=/path/to/host1/manifest.json,host2=/path/host2.json.
--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.
_--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 chrome:flags. Does not disable chrome:flags itself. Useful if an experiment makes chrome crash at startup: One can start chrome with --no-experiments, disable the problematic lab at chrome: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.
Also drops the First Run beacon so that First Run will not occur in subsequent runs as well._
--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
Starts the browser outside of managed mode.
--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-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).
--num-pac-threads
Specifies the maximum number of threads to use for running the Proxy Autoconfig (PAC) script.
--new-window
When the option to block third-party cookies is enabled, only block third-party cookies from being set.
--organic
Simulates an organic Chrome install.
--origin-port-to-force-quic-on
Force use of QUIC for requests over the specified port.
--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.
--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).
--perform-crash-analysis
Enable the post crash analyzer which uploads detailed crash information in situations where a crash is determined to be particularly interesting.
--playback-mode
Read previously recorded data from the cache. Only cached data is read. See kRecordMode.
--pnacl-dir
Overrides the path to the location that PNaCl is installed.
--ppapi-flash-in-process
Forces the PPAPI version of Flash (if it's being used) to run in the renderer process rather than in a separate plugin process.
--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.
--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.
--prerender
These are the values the kPrerenderFromOmnibox switch may have, as in --prerender-from-omnibox=auto.
auto Allow field trial selection.
disabled No prerendering.
enabled Guaranteed prerendering._
Controls speculative prerendering of pages, and content prefetching. Both are dispatched from elements._
--print-raster
These are the values the kPrerenderMode switch may have, as in --prerender=auto.
auto Allow field trial selection in both prerender and prefetch.
disabled No prerendering or prefetching.
enabled Both prerendering and prefetching._
prefetch_only No prerendering, but enables prefetching._
Enable conversion from vector to raster for any page._
--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.
--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-output-file
Specifies a path for the output of task-level profiling which can be loaded and viewed in about:profiler.
--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.
--promo-server-url
Specifies a custom URL for fetching NTP promo data.
--prompt-for-external-extensions
Should we prompt the user before allowing external extensions to install? Default is yes.
--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.
--purge-memory-button
Adds a Purge memory"button to the Task Manager, which tries to dump as much memory as possible. This is mostly useful for testing how well the MemoryPurger functionality works.
NOTE: This is only implemented for Views._
--record-stats
Capture resource consumption information through page cycling and output the data to the specified file.
--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.
--remote-debugging-frontend
Uses custom front-end URL for the remote debugging.
--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.
--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.
--reset-local-passphrase
Forces a reset of the local passphrase of the managed user account, and the managed user settings dialog is shown where a new passphrase can be set.
--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.
--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.
--safebrowsing-url-prefix
URL prefix used by safebrowsing to fetch hash, download data and report malware.
--safebrowsing-disable-auto-update
If present, safebrowsing only performs update when SafeBrowsingProtocolManager::ForceScheduleNextUpdate() is explicitly called. This is used for testing only.
--script-badges
Disables safebrowsing feature that checks download url and downloads content's hash to make sure the content are not malicious.
--script-bubble
Enable or diable the script bubble icon in the URL bar that tells you how many extensions are running scripts on a page.
--search-in-omnibox-hint
Enables the showing of an info-bar instructing user they can search directly from the omnibox.
--set-token
Sets a token in the token service, for testing.
--show-app-list
If true the app list will be shown.
--show-autofill-type-predictions
Annotates forms with Autofill field type predictions.
--show-icons
Makes component extensions appear in chrome://settings/extensions.
--show-launcher-alignment-menu
If true the alignment of the launcher can be changed.
--sideload-wipeout
Enables or disables sideload wipeout extension effort.
--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 --enable-dcheck is specified.
_--silent-launch
Causes Chrome to launch without opening any windows by default. Useful if one wishes to use Chrome as an ash server.
--simulate-upgrade
Simulates an update being available.
--simulate-critical-update
Simulates a critical update being available.
--simulate-outdated
Simulates that current version is outdated.
--socket-reuse-policy
Socket reuse policy. The value should be of type enum ClientSocketReusePolicy.
--spdy-proxy-auth-origin
Origin for which SpdyProxy authentication is supported.
--disabled
Speculative resource prefetching.
--learning
Speculative resource prefetching will only learn about resources that need to be prefetched but will not prefetch them.
--enabled
Speculative resource prefetching is enabled.
--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).
--start-maximized
Starts the browser maximized, regardless of any previous settings.
--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.
--sync-invalidate-xmpp-login
Allows insecure XMPP connections for sync (for testing).
--sync-keystore-encryption
Enable support for keystore key based encryption.
--sync-notification-method
Defines the sync notification method, not documented, but I assume either ntp or xmpp - you'll have to look this one up though.
--sync-notification-host-port
Overrides the default host:port used for sync notifications.
--sync-url
Overrides the default server used for profile sync.
--sync-tab-favicons
Enables syncing of favicons as part of tab sync.
--sync-throw-unrecoverable-error
Makes the sync code to throw an unrecoverable error after initialization. Useful for testing unrecoverable error scenarios.
--sync-try-ssltcp-first-for-xmpp
Tries to connect to XMPP using SSLTCP first (for testing).
--enable-tab-browser-dragging
Enables tab dragging to create a real browser.
--enable-tab-capture
Enables tab capture.
--test-name
Passes the name of the current running automated test to Chrome.
--test-nacl-sandbox
Runs the security test for the NaCl loader sandbox.
--test-type
Type of the current test harness ("browser" or "ui").
--testing-channel
Tells the app to listen for and broadcast testing-related messages on IPC channel with the given ID.
--track-active-visit-time
Enables tracking the amount of non-idle time spent viewing pages.
--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.
--uninstall
Runs un-installation steps that were done by chrome first-run.
--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.
--max-spdy-sessions-per-domain
Sets the maximum SPDY sessions per domain.
--max-spdy-concurrent-streams
Sets the maximum concurrent streams over a SPDY session.
--user-data-dir
Specifies the user data directory, which is where the browser will look for all of its state.
--use-client-login-signin-flow
Uses the ClientLogin signin flow instead of the web-based signin flow.
--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.
--viewer-connection
Requests that Chrome connect to a remote viewer process using an IPC channel of the given name.
--visit-urls
Cycle through a series of URLs listed in the specified file.
--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.
--whitelisted-extension-id
Enable the "native services" feature of web-intents.
--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.
When plugin installation is enabled
--plugins-metadata-server-url
Specifies a custom URL for fetching plug-ins metadata. Used for testing.
Compilation of Flags / Switches by:
Jason Milkins - https://github.com/jasonm23
Peter Beverloo - https://github.com/beverloo
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