Explore powerful tools and features to customize Firefox and make the browser all your own.
Quickly and easily switch between popular user-agent strings.
Automatically find and try coupon codes with 1-click. Works at thousands of stores in the US, Canada, Australia, India and the UK.
The most popular ad blocker for Chrome and Safari, now available for Firefox! Block all advertisements on all web pages, even Facebook, Youtube, and Hulu. Browse faster, too! Most ads aren't even downloaded at all, saving you time and bandwidth.
Right-click on a section of text and click on Translate icon next to it to translate or listen it to your language.
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
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.
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.
Surfing without concerns! The free browser add-on Browser Safety recognizes insecure websites and warns you immediately.
Быстрый переход на популярные сервисы от Mail.Ru.
Dark theme for every website. Care your eyes, use Dark Reader for night and daily browsing.
Re-impliments the google image, "View Image" and "Search by Image" buttons.