Explore powerful tools and features to customize Firefox and make the browser all your own.
Blocks annoying video ads on YouTube, Facebook ads, banners and much more. Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
Block unwanted dangerous malware while keeping your personal information safe. Fraudscore's Artificial Intelligence tracks and blocks shady advertisements, malicious websites, and software that tries to steal your personal information.
Easily mute all tabs with just one click!
SmartProxy will automatically enable/disable proxy for the sites you visit, based on customizable patterns.
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.
瞬间过滤B站(bilibili.com)刷屏的相似弹幕，还你清爽的弹幕视频体验。 *a tweak for a Chinese website. Please ignore this add-on if you are not a user of bilibili.com.*
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.
Re-impliments the google image, "View Image" and "Search by Image" buttons.
Make view image button great again. This web extension adds "View Image" button to Google Image Search results.