Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Tree Style Tab
Show tabs like a tree.
125,442 users
Search by Image - Reverse Image Search
Reverse image search using various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
61,090 users
Group Speed Dial
Speed Dial / visual bookmarks with groups for power users. Now you can fit all your favorite sites into one fast SpeedDial in an organized fashion. Dials are synchronized through Cloud to all your devices! For free! No Ads! www.FastAddons.com
56,178 users
SoundFixer
Lets you fix annoying sound problems in YouTube videos and such. Like audio in one channel only, too quiet or too loud. (Unfortunately, doesn't work on many other websites because of cross-domain issues — but it does work on YouTube.com!)
3,744 users
Dropbox: Launch in Pinned Tab
Click on the extension icon and it redirects to your favorate website in a pinned tab. Also works with keyboard shortcut.
801 users
YouTube™ Thumbnail Rating Bar
Show the rating bar (likes/dislikes) on the bottom of every YouTube thumbnail.
1,603 users
Scholarscope
自动加载PubMed搜索结果中期刊的信息，显示它们的影响因子以及该领域的排名。 Pubmed是美国国立卫生研究所管理的、向全球开放的数据库。用户可以在网站上检索已经或是即将发表的文献，并查看这些文献的相关信息，包括作者、期刊、发表日期、摘要和下载信息。网站链接为 https://www.ncbi.nlm.nih.gov/pubmed/
2,666 users
Steam Database
Adds Steam Database link across Steam Community and Store.
14,988 users
⭐ Super Video Download ⭐
⭐ Most popular and ONLY ⭐ Video Downloader that downloads most of the Videos, 4K and Full HD. SuperVideo Downloader helps you to download any video from Facebook, Instagram, Dailymotion, Twitter, Vimeo, VK and many more. ⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐
978 users
Avira Password Manager
Avira Password Manager synchronizes every change you make, and can be used on a wide range of devices and operating systems as well as with popular browsers via an extension.
5,980 users
YouTube Download Tool
Download any YouTube video in your favorite format.
3,998 users
Kopernio - powered by Web of Science
Kopernio adds a one-click access button to full-text research article PDFs on thousands of academic sites. Works with subscription and open access articles.
3,295 users