Explore powerful tools and features to customize Firefox and make the browser all your own.
New Tab Override brings back the ability to change the page which is shown when opening a new tab.
With this extension you can check text with the free style and grammar checker LanguageTool. It finds many errors that a simple spell checker cannot detect, like mixing up there/their, a/an, or repeating a word.
Download YouTube videos in all available formats and extract the original audio files
"Dictionary (Google™ Translate) Anywhere" extension provides access to a floating multilingual Google Translate panel on any webpage.
Squared tabs, application menu, add-on bar, small button view and many more 'old' features for 'Firefox 29-56', not for Firefox 57+! Release builds Beta builds
Tab Groups are an easy way to organize a lot of tabs. You can visually group related tabs, switch between groups, and quickly search through all of your tabs to switch to a specific one.
Add-on to display GitHub code in tree format
Does everything for an HTML table: Copy (table/row/column/cell), Sort (multi-column), Search (regex, range operations ...), Filter, Chart, Statistics, Rearrange, Combine/Compare. To use: Right click in a real HTML table for the "tabletools2" option.
Extension to Selenium IDE for various screen capture capabilities.
Translate whole page using Google Translate
This extension is a replacement of Firefox official error page, which adds some useful tools to aid your troubleshooting. The tools include: - Google Cache (view the page cached by Google) - Coralize (use Coral CDN proxy to connect again) - Wayback (view an earlier version of this page) - Ping (use a server to ping the target server) - Trace (trace the network route from you to the server) - Whois (look up who owns the website) - Proxify (use your custom web proxy to connect)
Switch Youtube to dark mode. Dark mode will help devices save battery and reduces strain on your eyes.