My Favorite Add-ons
132 Add-ons in this Collection
Make any pages' search functionality available in the Search Bar (or "search box")...
HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon
For Online HTML 5 validation, you need 0.962
Adds an about:addons-memory page that details add-on memory usage
Dead pages, broken links, the scourge of the internet. Powerhouse sites like Slashdot and Digg can bring a server to its knees. What do we do when a page is dead but we still want to see it? Call in the clerics, and perform a resurrection...
Cookie Monster provides proactive cookie management on a site or domain level basis, including 3rd party cookies. Via the status bar, it provides easy access to enhanced cookie functionality, while doing so in a non-intrusive manner.
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.
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.
Install Browser Extensions straight from GitHub Repositories
Bring back your personal and powerful Firefox Button!
Offers the possibility to display documents in browser window.
Lets the user direct the submission of a form to a new tab or window. [Bug #17754]