Extensions
Explore powerful tools and features to customise Firefox and make the browser all your own.
User-Agent Switcher and Manager
Spoofs User-Agent strings of your browser with a new one globally, randomly or per hostname
15,103 users
AdBlock for Firefox
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.
1,210,464 users
Ecosia — The search engine that plants trees!
Ecosia is a search engine that uses 80% of its profits from ad revenue to plant trees. By searching with Ecosia you can help the environment for free. This extension adds Ecosia.org as the default search engine to your Firefox browser. Give it a try!
283,391 users
Firefox Multi-Account Containers
Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs that preserve your privacy. Cookies are separated by container, allowing you to use the web with multiple identities or accounts simultaneously.
156,557 users
Classic Theme Restorer (Fx29-56)
Squared tabs, application button menu, add-on bar, small button view, old search and many more 'old' features for 'Firefox 29-56' only, not for Firefox Quantum (57+)! >Latest builds only on Github!<
192,272 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.
52,583 users
OmniSidebar
Bring your bookmarks into view with just a gesture. Move the sidebar across the screen. Open a different sidebar by just clicking its title. And more! Keeps your sidebar simple and quick to access!
23,787 users
Puzzle Bars
Piece together all of your add-on buttons and extras into your browser window in exactly the way you want them!
1,003 users
Anime1.me
Anime1.me 官方播放助手
0 users
Bugzilla Crash Stop
This webextension inserts table with data under crash signatures to check if the patches had an effect on crash numbers.
69 users
URL in title
Add the url in the title of the window. This is useful to help KeePass identify the correct entry to use. The is port of the extenson 'Add URL to Window Title (Advanced KeePass Usage)' by Eric.
61 users
SiteMacro
Records macros to automatically perform actions or submit forms on user defined websites. This can for example be used to log into captive portals, or to confirm annoying cookie banners on web sites.
15 users