Explore powerful tools and features to customize Firefox and make the browser all your own.
Automatically find and try coupon codes with 1-click. Works at thousands of stores in the US, Canada, Australia, India and the UK.
New Tab Override brings back the ability to change the page which is shown when opening a new tab.
Create a QR code of the selected text, current url or hyperlink. Also possible to create a QR Code from free text within Firefox. Now with UTF8 support.
Customizable mouse gesture addon, which supports over 50 different actions.
Squared tabs, application menu, add-on bar, small button view and many more 'old' features for 'Firefox 29-56', not for Firefox 57+! Latest builds on Github! AMO is dead.
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.
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.
Add-on to display GitHub code in tree format
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 website you want to dark mode. Dark mode will help devices save battery and reduces strain on your eyes.
Read out loud the current web-page article with one click. Supports 40+ languages.