Firefox: If you regularly tweak entries in Firefox's about:config menu (as we often do), you've probably stumbled upon preferences that look interesting but you aren't sure how to use them. What's ...

The Firefox Web browser, built by the Mozilla Foundation and friends is a complicated piece of technology—if you care to look under the hood. It's not obvious where the hood catch is, because the ...

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 ...

In Firefox, about:config refers either to an internal address like about:preferences (the Options page) or about:support (the Troubleshooting Information page). Let’s see how we can use about:config ...

Unbeknownst to many users, Firefox has a whole host of application settings (called preferences) that aren’t found under the regular Options or Preferences interface. These preferences, both hidden ...

Anyone who likes tinkering with Firefox’s various hidden features knows that the key to finding them is the browser’s ‘about:’ pages—for instance about:config or about:preferences. When these and ...