My Favorite Add-ons
About this Collection
My favorite add-ons
124 Add-ons in this Collection
Make any pages' search functionality available in the Search Bar (or "search box")...
Important note: This extension will not work in Firefox 57 and above. Providing this functionality in Firefox is no longer possible, the extension is discontinued.
Open in Browser by Rob W, Sylvain Pasche, others
Offers the possibility to display documents in the browser window.
Firefox OS Simulator is a test environment for Firefox OS. Use it to test your apps in a Firefox OS-like environment that looks and feels like a mobile phone. After installing it, go to Web Developer > Firefox OS Simulator to access its features.
DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.
Scriptish by Erik Vold, Nils Maier, others
The greatest user script engine on the Internet (a fork of Greasemonkey).
Expands the context menu's 'Search for' item into a list of installed search engines, allowing you to choose the engine you want to use for each search.
Adds an about:addons-memory page that details add-on memory usage
Suspends background old tabs automatically to save memory usage.
Bring back your personal and powerful Firefox Button!
KeyManager Tool: Firefox Add-on for Key Generation, Certificate Enrollment, CRL Signing, and Identity and Authority Delegation