Up & Coming Extensions

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Snap Links Plus

Select a number of links with a rectangle and open them all in new tabs in the same or a new window(s), download them or copy them to the clipboard. You can also lasso checkboxes to quickly check or uncheck them.

Rated 4 out of 5 stars (139)
25,396 users

Stylish Requires Restart Featured

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Tumblr, and many, many other sites. You can even customize Firefox and other programs themselves.

Rated 4 out of 5 stars (882)
449,417 users

Console

Adds an error console in the browser

Rated 5 out of 5 stars (5)
1,071 users

Adguard AdBlocker

Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.

Rated 5 out of 5 stars (261)
268,974 users

Video Downloader Prime

Easily download most popular video formats.

Rated 4 out of 5 stars (34)
51,714 users

Drumpfinator

Make Donald Drumpf Again! Replaces all instances of "Trump" with "Drumpf".

Rated 4 out of 5 stars (30)
2,690 users

SaveFrom.net helper all-in-1 / youtube downloader

SaveFrom.net helper will enable you to download files from YouTube.com, FaceBook.com, Vimeo.com, Daylimotion.com, VK.com, Odnoklassnoki.ru, Soundcloud.com and more than 40 other just in one click.

Rated 4 out of 5 stars (250)
166,642 users

start.me - Customize your New Tab Home Page

Customize your New Tab Home Page in Firefox with this powerful (cloud-based) add-on.

Organize all your Bookmarks/Websites, RSS/News feeds, notes, to-do's, mail & social updates in one place.

Works on any PC, mobile or tablet device.

Rated 4 out of 5 stars (82)
6,991 users

skyZIP™ acceleration and compression Proxy

skyZIP browser extension can reduce satellite data usage by using NYNEX proxy servers to optimize webpages. Data savings are at about 50%

Rated 4 out of 5 stars (37)
4,313 users

Youtube Downloader 4K - Video Downloader Requires Restart

Download from YouTube 4K videos and thousands other video websites.

Rated 4 out of 5 stars (51)
132,605 users

Remote Control

Remote control the browser by executing any Javascript (e.g. forcing a page reload) from a TCP socket, e.g. from a script.

This allows you to refresh the browser from your IDE, or to automate tests.

Rated 5 out of 5 stars (5)
1,449 users

Synology Download Extender

An extension for Synology Download Station.
You can send links to you Synology from context menu or direct input.
Watch the download progress.
Clean the finished tasks.
Works with magnet-links too.

A Synology with Download Station is required.

Rated 4 out of 5 stars (13)
2,819 users

µBlock

NOTE: Users should be aware that this add-on represents an older fork. The original developer of uBlock is continuing to actively develop the newer fork uBlock Origin.

Rated 4 out of 5 stars (229)
164,984 users

Adblock Plus

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Rated 5 out of 5 stars (4,947)
19,927,746 users

WebVR Plus

Manages browser preferences for optimal WebVR support, avoiding the need to make about:config changes.

Rated 5 out of 5 stars (1)
3,894 users

BVB-Start

Mit dieser Erweiterung aktivieren Sie BVB-Start als Startseite für den Browser und neue Tabs. Damit verpassen Sie keine schwarzgelben Neuigkeiten mehr!

Not yet rated
1,387 users

NO Google Analytics

Actively blocks Google Analytics from running on your Firefox, manually stopping the website you visit from tracking you!

Rated 3 out of 5 stars (19)
37,168 users

h264ify

Makes YouTube stream H.264 videos instead of VP8/VP9 videos

Rated 5 out of 5 stars (17)
16,337 users

Privacy Settings

Alter Firefox's built-in privacy settings easily with a toolbar panel.

Rated 5 out of 5 stars (57)
21,228 users

Google search link fix

This extension prevents Google and Yandex search pages from modifying search result links when you click them. This is useful when copying links but it also helps privacy by preventing the search engines from recording your clicks.

Rated 5 out of 5 stars (147)
78,269 users