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Video Background Play Fix Compatible with Firefox 57+

Some sites may not work with Firefox video background play feature. This add-on provides a quick fix by blocking the Page Visibility API and the Fullscreen API.

Rated 4 out of 5 stars (37)
2,032 users

WP Strona Startowa Compatible with Firefox 57+

Bądź zawsze na bieżąco z najświeższymi informacjami z kraju i ze świata. Dodaj WP jako stronę startową w swojej przeglądarce.

Rated 4 out of 5 stars (6)
4,439 users

Reverse Image Search Compatible with Firefox 57+ Featured

Capture, Reverse Image Search is a powerful capturing reverse image search tool built on top of TinEye engine.

Rated 4 out of 5 stars (9)
8,923 users

Search Shield Study

A shield Study add-on testing the search experience.

Rated 2 out of 5 stars (1)
1,940 users

Firefox OnBoard

The Mozilla Firefox Onboarding Experiment

Rated 2 out of 5 stars (2)
1,853 users

Startfenster

Das Startfenster fürs Internet

Rated 4 out of 5 stars (8)
4,467 users

Plugin Safety

Plugin Safety as a Shield Study

Rated 4 out of 5 stars (17)
2,453 users

Hide Tabbar Requires Restart

Hide the tabbar by just pressing a key.

Rated 4 out of 5 stars (83)
14,220 users

Open in Tor Browser Compatible with Firefox 57+

Open current page or link in tor browser for better privacy

Rated 4 out of 5 stars (10)
1,554 users

YouTube MP3 Compatible with Firefox 57+

Download videos from youtube in mp3 format.
Extension uses the website youtube-mp3.org

Rated 3 out of 5 stars (2)
5,097 users

Stay On Top

NOTE: Development for this addon has stopped. I recommend checking out Topick instead.

Keeps a Firefox window on top of other windows

Rated 5 out of 5 stars (1)
3,113 users

New Tong Wen Tang Compatible with Firefox 57+

Traditional and Simplified Chinese Converter

Rated 5 out of 5 stars (9)
1,805 users

randomUserAgent Requires Restart

randomUserAgent overrides the default user agent from Firefox with a random user agent.

Rated 3 out of 5 stars (21)
2,195 users

Youtube Dark Mode Compatible with Firefox 57+

Switch youtube to dark mode. Dark mode will help devices save battery and useful for your sleeping. This dark mode is supported by https://www.emojiselector.com

Rated 5 out of 5 stars (67)
1,353 users

MuteTab Compatible with Firefox 57+

Mute newly created tabs

Rated 5 out of 5 stars (3)
1,718 users

Add-on Update Checker Requires Restart

Adds Tools menu item to check Add-ons for updates. Includes toolbar icon.

Rated 4 out of 5 stars (56)
19,415 users

TopSite - Find Top Sites Requires Restart

Instant access to the top websites on topics related to the website you are browsing! Search for any topic and find the best sites for this topic.

Rated 5 out of 5 stars (5)
18,298 users

Similar Sites Toolbar Requires Restart

The Similar Sites add-on lets you discover new sites related to your current open web page, all based on user results.

Rated 3 out of 5 stars (2)
18,346 users

Search Helper - Enhance Google Requires Restart

Open Google search results in multiple tabs. Access your last search results from a toolbar button. Get similar sites for any Google search result.

Rated 5 out of 5 stars (6)
18,567 users

External Application Buttons 2 Requires Restart

Lightweight add-on to create toolbar buttons that launch various external applications.

Rated 5 out of 5 stars (25)
13,236 users