about:addons The 'new' addons manager, in trunk builds dated or later.about:about Lists all these about: URLs ( Mozilla Suite/SeaMonkey or Firefox 4 and newer only).about: The same page as 'Help -> About' (except that, on some applications, Help → About is a much smaller popup).Firefox comes with a huge set of useful about commands which I would like to share with you today.Įvery about: command must be entered in the address bar like URL of a web page:įirefox allows to extend the default about: commands set using special extensions, but the default list of about: commands in Firefox without add-ons looks as follows: Many Firefox users are not even aware that about:config is not the only about: command available in the browser. It contains lots of options which are not accessible from the browser's settings interface. That command opens the built-in configuration editor of the Firefox browser and allows performing extreme fine-tuning of the browser. In our articles, we often mention the about:config command which can be entered in the address bar. RECOMMENDED: Click here to fix Windows issues and optimize system performance

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