Quick Proxy автор Oliora

Note that to use Quick Proxy, you must allow the extension to run in Private Windows (this is a limitation of Firefox’s security model). You can enable this during installation or later via Tools > Extensions and Themes > Quick Proxy > Details.

After installation, set up your alternative proxy configurations on the Quick Proxy preferences page. You can access it via Tools > Extensions and Themes > Quick Proxy > Preferences.

It’s recommended to pin the Quick Proxy extension to the toolbar for easy access. You can do this from the Extensions toolbar menu.