Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
TinEye Reverse Image Search
TinEye is a reverse image search engine. The extension adds a context menu item so you can search for an image to find out where it came from, how it is being used, if modified versions of the image exist, or to find higher resolution versions.
71,373 users
Imagus
Enlarge thumbnails, and show images/videos from links with a mouse hover.
52,380 users
User-Agent Switcher
Spoofs User-Agent strings of your browser
9,424 users
Search by Image - Reverse Image Search
Reverse image search using various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
62,343 users
Classic Theme Restorer (Fx29-56)
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
245,828 users
Tab Groups
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.
67,277 users
Octotree
Add-on to display GitHub code in tree format
9,092 users
TableTools2 - Copy/Sort/Chart/Filter Table&More!
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.
9,185 users
Selenium IDE: Screen Capture Extension
Extension to Selenium IDE for various screen capture capabilities.
2,050 users
Page Translate
Translate whole page using Google Translate
1,751 users
ErrorZilla Plus
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)
2,781 users
Youtube Dark Mode
Switch Youtube to dark mode. Dark mode will help devices save battery and reduces strain on your eyes.
2,750 users