Mozilla Firefox is without doubt the browser that you can customize and tweak the most. Even the regular options that are made available to all users are quite extensive, but that is just the tip of the iceberg.
Experienced Firefox users know that there is about:config, a special page that is part of Firefox that displays hundreds of additional preferences that users can modify.
The sheer size is too much for the options of the browser but the main reason why those preferences are not displayed to all users is that wrong values can easily wreck the browser or some of its functionality.
The developer of Pale Moon, a Firefox fork that has seen a surge in popularity after the introduction of the new Australis interface in Firefox, has created a browser extension for Firefox and Pale Moon that introduces an advanced options menu in the browser.
The new advanced options menu is added to the Tools menu which you can display with a tap on the Alt-key in the browser. A new window opens when you activate it that looks similar to Firefox's options window but with the difference that you find advanced preferences listed here.
Note: This is a frontend to Firefox's advanced configuration which means that changes that you make here will remain even if you uninstall the Pale Moon Commander add-on at one point in time. The add-on ships with a reset preferences button which will set all preferences -- not only those that you modified using it -- to their default values.
Here are a couple of useful tools and information about Firefox's about:config page:
Here is a short overview of the preferences that the add-on lists in its interface.
Pale Moon Commander is not the first add-on for Firefox. Gui:config has been around for some time for instance and it is more or less a frontend for about:config.
Pale Moon Commander improves the accessibility of important Firefox preferences without displaying preferences that can wreck the browser completely or part of it.
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Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.