Explore powerful tools and features to customize Firefox and make the browser all your own.
Spoofs User-Agent strings of your browser with a new one globally, randomly or per hostname
Copy Text multiple times before pasting
Automatically find and try coupon codes with 1-click. Works at thousands of stores in the US, Canada, Australia, India and the UK.
An easy-to-use font inspector to get CSS styles of the selected element
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!<
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.
YouTube의 가장 우수한 광고 차단기입니다. 다른 광고 차단기보다 빠르고 가볍습니다. 모든 종류의 YouTube 광고 (YouTube 배너 광고 및 YouTube 동영상 광고)를 자동으로 숨 깁니다.
Download Mp3 from YouTube with one click with YouTube Mp3 Download! Never has been so easy to download mp3 from YouTube!
This webextension inserts table with data under crash signatures to check if the patches had an effect on crash numbers.
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.
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.