The Configuration Editor (about:config page) in Mozilla Firefox lists settings known as preferences. Most of these preferences are advanced settings that are not present in the Options panel. Changing ...

Ever since its debut, Firefox has garnered a reputation for being an enormously customizable program, both through its add-on architecture and its internal settings. In fact, many of Firefox’s ...

Jack Wallen walks you through the process of locking down options with Firefox’s about:config page to help secure the browser from user tampering. Since the release of Firefox Quantum, have you made ...

Unbeknownst to many users, Firefox has a whole host of hidden settings that can fine-tune and potentially speed up your browsing experience. Bill Detwiler shows you how to access and modify Firefox’s ...

If you’d like to see more tabs in your tab bar at once, set browser.tabs.tabMinWidth to something smaller than 100. The top image shows the default minimum tab width of 100 pixels; the bottom image ...

Windows/Mac/Linux (Firefox): The Configuration Mania Firefox extension provides a GUI menu for tweaking Firefox's about:config settings. That means that rather than typing about:config in your address ...

You may end up in a situation where you need to reset all your Firefox preferences to troubleshoot and fix problems, or because you just want to restore the default settings. Here we tell you ...

Firefox is a very customizable browser. As well as add-ons, it has a large number of advanced settings that you can tweak, some of which enable you to do pretty useful things like stopping Firefox ...