Up & Coming Extensions

Subscribe

Download Youtube Video Compatible with Firefox 57+

Save video from any Youtube video in High definition HD or Standard definition SD.

1-click download any video directly from Youtube.

Choose if you want .mp4, .webm, mobile, or audio only (audio only saves space and great for mobile devices)

Rated 4 out of 5 stars (155)
15,162 users

Download Facebook Video Compatible with Firefox 57+

Save video from any Facebook video in original .mp4 format.

"1-Click" download any video directly from Facebook.com.

Choose if you want video or just an image.

Addon uses 3rd party site (www.getyourfb.com) for operation.

Rated 5 out of 5 stars (70)
3,652 users

1-Click Downloader (Video or Photo) Compatible with Firefox 57+

Click to download any Youtube, Instagram, Facebook, Vid.me, Streamable, LiveLeak, Vine video or photo.

Rated 5 out of 5 stars (101)
10,297 users

Popup Blocker Compatible with Firefox 57+

Prevents your web browser from opening a new window on top of the content or web site you are viewing. The Addon also supresses unwanted advertisement windows on your screen. The one deciding what consitutes a popup is the user.

Rated 4 out of 5 stars (11)
2,256 users

Firefox Pioneer Compatible with Firefox 57+

Pioneer is an opt-in program that allows collection of richer data from Firefox.

Rated 4 out of 5 stars (42)
2,887 users

YouTube Video and Audio Downloader (Dev Edt.) Compatible with Firefox 57+

Download YouTube videos in all available formats and extract the original audio files

Rated 4 out of 5 stars (18)
1,900 users

LanguageTool Grammar Checker Compatible with Firefox 57+

With this extension you can check text with the free style and grammar checker LanguageTool. It finds many errors that a simple spell checker cannot detect, like mixing up there/their, a/an, or repeating a word.

Rated 4 out of 5 stars (22)
34,351 users

GradeCam Helper Compatible with Firefox 57+

Used in conjunction with the GradeCam plugin for Firefox to enable the teacher gradebook transfer feature. See http://gradecam.com

Not yet rated
1,027 users

ClassLink OneClick Extension

ClassLink provides secure and simple single sign-on access to all your apps, files and classes from anywhere.

Rated 5 out of 5 stars (2)
4,521 users

Send to VLC (VideoLAN) player Compatible with Firefox 57+

Send streamable media from current tab to VLC (VideoLAN) media player

Rated 4 out of 5 stars (2)
944 users

Stylus (Beta) Compatible with Firefox 57+

Redesign the web with Stylus, a user styles manager. Stylus allows you to
easily install themes and skins for many popular sites.

Rated 4 out of 5 stars (25)
2,577 users

Cookie AutoDelete Compatible with Firefox 57+

Control your cookies! This WebExtension is inspired by Self Destructing Cookies. When a tab closes, any cookies not being used are automatically deleted. Whitelist the ones you trust while deleting the rest. Support for Container Tabs (Firefox 53+).

Rated 5 out of 5 stars (42)
3,884 users

Violentmonkey Compatible with Firefox 57+

Violentmonkey provides userscripts support for browsers.

Rated 4 out of 5 stars (29)
2,365 users

Web to PDF Compatible with Firefox 57+

Save the current page as a pdf file

Rated 5 out of 5 stars (25)
1,793 users

User Agent Switcher Compatible with Firefox 57+

Easily override the browser's User-Agent string

Rated 4 out of 5 stars (21)
4,647 users

Privacy Badger Compatible with Firefox 57+

Protects your privacy by blocking spying ads and invisible trackers.

Rated 4 out of 5 stars (172)
266,620 users

JavaScript Toggle On and Off (WebExtension) Compatible with Firefox 57+

Toggle JavaScript engine on and off the easy way

Rated 4 out of 5 stars (9)
1,851 users

Web Health Study

A Firefox Shield study to learn more about users' understanding of how the web works.

Rated 4 out of 5 stars (3)
8,666 users

Link Cleaner Compatible with Firefox 57+

Clean URLs that are about to be visited:
- removes utm_* parameters
- on item pages of aliexpress and amazon, removes tracking parameters
- skip redirect pages of facebook, steam and reddit

Rated 4 out of 5 stars (22)
1,871 users

Vue.js devtools Compatible with Firefox 57+

DevTools extension for debugging Vue.js applications.

Rated 5 out of 5 stars (19)
2,522 users