Explore powerful tools and features to customize Firefox and make the browser all your own.
Removes all annoying Ads from YouTube
Take tabs from parent windows and arrange them in layouts of tiled sub-windows, using the toolbar button, context menu or keyboard shortcuts. Makes it easy to browse, compare or monitor multiple pages. Synchronize scroll. Save and re-open layouts.
The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube™ and Beyond. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, Hulu, Metacafe, YouKu, etc.
Enables desktop notifications like in Chrome (e.g. Gmail, imo.im) and, if the site doesn't support them, it can notify new messages or updates detecting changes of the title (e.g. Hotmail, Yahoo, Facebook, Twitter). Even if the browser is minimized!
Click on the extension icon and it redirects to your favorate website in a pinned tab. Also works with keyboard shortcut.
Show the rating bar (likes/dislikes) on the bottom of every YouTube thumbnail.
Adds Steam Database link across Steam Community and Store.
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/
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.
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.
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Download any YouTube video in your favorite format.