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Run Chrome/Chromium with proxy settings on Linux

And dealing with the dull fact that "your system is not supported".

If you open the "Proxy Settings" window on Chrome and Chromium for Linux, a discouraging message shows up:

When running Chromium under a supported desktop environment, the system proxy settings will be used. However, either your system is not supported or there was a problem launching your system configuration.

But you can still configure via the command line. Please see man chromium for more information on flags and environment variables.

Fair enough: Chrome and Chromium cannot read environment parameters I set up for my proxy, so the solution lies in the command line. What follows is the generic option flag for when you invoke Chrome/Chromium from the terminal:

--proxy-server=<scheme>=<uri>[:<port>][;...] | <uri>[:<port>] | "direct://"

This tells Chrome/Chromium to use a custom proxy configuration. You can specify a custom proxy configuration in several ways. The most common one is providing a semi-colon-separated mapping of list scheme to url/port pairs. For example:


Of course you want to bypass proxy for when you connect to localhost. Here comes another parameter (generic version):


This tells Chrome/Chromium to bypass any specified proxy for the given semi-colon-separated list of hosts. This flag works only if the previously seen --proxy-server option is set, of course. Example:


As you can see, wildcards are supported as well.

Sources - Network Settings (link)