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Custom Google Chrome settings for each computer user

Google Chrome on Linux has a number of useful options, for example:

  • launching a web browser in incognito mode
  • you can specify the path to the folder where the profile data and browser cache will be stored
  • you can select the type of password storage
  • proxy settings

Like many programs in Linux, Google Chrome supports command line options – all these settings can be specified when starting a web browser, but this is not very convenient. In addition to creating shortcuts, there is another convenient way to write settings for each computer user: all configurable flags can be specified in the ~/.config/chrome-flags.conf file, which is personal for each user.

You may have noticed information about this feature during the installation or update of Google Chrome:

==> NOTE: Custom flags should be put directly in: ~/.config/chrome-flags.conf
==> NOTE: The launcher is called: 'google-chrome-stable'

How to save settings in chrome-flags.conf file

To open (or create, if the file does not already exist) the Google Chrome personal settings file for the current user, run the command:

gedit ~/.config/chrome-flags.conf

To set the settings for another user, specify the full path to the file in the user's home folder:

sudo gedit /home/alex/.config/chrome-flags.conf

Chrome-flags.conf file format

The settings (options) discussed below can be used both in the command line to launch a web browser (the launcher is named “google-chrome-stable”, you can also specify these settings in the ~/.config/chrome-flags.conf file.

You can use the following formats:

  • each setting on a separate line
  • all settings are in one line, the settings are separated by spaces

Google Chrome options and settings on Linux

--user-data-dir=DIR

Specifies the directory that user data (your "profile") is kept in. Defaults to $HOME/.config/google-chrome. Separate instances of Google Chrome must use separate user data directories; repeated invocations of google-chrome will reuse an existing process for a given user data directory.

--app=URL

Runs URL in "app mode": with no browser toolbars.

--incognito

Open in incognito mode.

--new-window

If PATH or URL is given, open it in a new window.

--proxy-server=host:port

Specify the HTTP/SOCKS4/SOCKS5 proxy server to use for requests. This overrides any environment variables or settings picked via the options dialog. An individual proxy server is specified using the format: [SCHEME://]HOST[:PORT]

Where <proxy-scheme> is the protocol of the proxy server, and is one of:

  • http
  • socks
  • socks4
  • socks5

If the SCHEME is omitted, it defaults to "http". Also note that "socks" is equivalent to "socks5".

Examples:

Use the HTTP proxy "foopy:99" to load all URLs: --proxy-server="foopy:99"

Use the SOCKS v5 proxy "foobar:1080" to load all URLs: --proxy-server="socks://foobar:1080"

Use the SOCKS v4 proxy "foobar:1080" to load all URLs: --proxy-server="socks4://foobar:1080"

Use the SOCKS v5 proxy "foobar:66" to load all URLs: --proxy-server="socks5://foobar:66"

It is also possible to specify a separate proxy server for different URL types, by prefixing the proxy server specifier with a URL specifier. Example: Load https://* URLs using the HTTP proxy "proxy1:80". And load http://* URLs using the SOCKS v4 proxy "baz:1080": --proxy-server="https=proxy1:80;http=socks4://baz:1080"

--no-proxy-server

Disables the proxy server. Overrides any environment variables or settings picked via the options dialog.

--proxy-auto-detect

Autodetect proxy configuration. Overrides any environment variables or settings picked via the options dialog.

--proxy-pac-url=URL

Specify proxy autoconfiguration URL. Overrides any environment variables or settings picked via the options dialog.

--password-store=<basic|gnome|kwallet>

Setthepasswordstore to use. The default is to automatically detect based on the desktop environment. basic selects the built in, unencrypted password store. gnome selects Gnome keyring. kwallet selects (KDE) KWallet. (Note that KWallet may not work reliably outside KDE.)

--version

Show version information.

Environment variables

Google Chrome obeys the following environment variables:

all_proxy

Shorthand for specifying all of http_proxy, https_proxy, ftp_proxy

http_proxy, https_proxy, ftp_proxy

The proxy servers used for HTTP, HTTPS, and FTP.Note: because Gnome/KDE proxy settings may propagate into these variables in some terminals, this variable is ignored (in preference for actual system proxy settings) when running under Gnome or KDE.Use the command-line flags to set these when you want to force their values.

auto_proxy

Specify proxy autoconfiguration.Defined and empty autodetects; otherwise, it should be an autoconfig URL.But see above note about Gnome/KDE.

SOCKS_SERVER

SOCKS proxy server (defaults to SOCKS v4, also set SOCKS_VERSION=5 to use SOCKS v5).

no_proxy

Comma separated list of hosts or patterns to bypass proxying.

All Google Chrome command line options

Google Chrome has hundreds of undocumented command line flags that are added and removed at the whim of the developers. The above are relatively stable flags documented.

If you are interested in a complete list of Chrome and Chromium flags, then you can refer to these lists:

Another way to view the complete list of flags is to find the chrome_switches.cc file (path ./chrome/common/chrome_switches.cc) in the source code of the web browser.


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