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AdBlocker Ultimate

Free and improved ad blocker. Completely remove ALL ads. No "acceptable" ads or whitelisted advertisers, block tracking, block malware!

Rated 5 out of 5 stars (2,078)
354,244 users

µBlock

The most efficient blocker for Firefox.

No ads, no tracking, and insanely faster page loads.

Rated 4 out of 5 stars (229)
104,074 users

Bluhell Firewall Featured

Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.

Rated 4 out of 5 stars (442)
68,027 users

I don't care about cookies

Get rid of annoying cookie warnings from almost all 'infected' websites!

Rated 5 out of 5 stars (172)
56,565 users

ProCon Latte Content Filter

Block sites containing pornography, or any other kind of material, based on simple keyword lists.

Rated 4 out of 5 stars (257)
35,666 users

Speed Tweaks (SpeedyFox)

This extension provides a list to almost all the settings that you may need to alter in order to enhance Firefox's speed.

Rated 5 out of 5 stars (91)
27,461 users

Popup Blocker (strict) Compatible with Firefox 57+

Strictly block all popup requests from any website by default. A notification window is opened to allow you accept, reject, open the popup in background page, or redirect the current page to popup address

Rated 4 out of 5 stars (56)
20,801 users

Instant Translate: Ultimate Translator Compatible with Firefox 57+

Translator, dictionary and text-to-speech for 103 languages. Select and translate on any page with a shortcut on double-click.

Rated 4 out of 5 stars (137)
19,376 users

PDF Creator Compatible with Firefox 57+

Convert any webpage to a pdf file quickly using our converter service

Save to local disk, share by email, twitter whatever.

Install to get these great features

Rated 3 out of 5 stars (35)
18,963 users

about:addons-memory

Adds an about:addons-memory page that details add-on memory usage

Rated 4 out of 5 stars (134)
18,129 users

AdBlocker for Gmail™ Compatible with Firefox 57+

Removes all annoying Ads and Banners from Gmail

Rated 5 out of 5 stars (11)
13,367 users

Wayback Machine Compatible with Firefox 57+

Detects dead pages, 404s, DNS failures & a range of other web breakdowns, offering to show archived versions via the Internet Archive's Wayback Machine. In addition you can archive web pages, and see their most recent & first archives.

Rated 5 out of 5 stars (22)
11,458 users

CleanQuit (Mobile)

Clean up the mess and quit! This extension brings back the good old quit button to life as well as the ability to clean what you wish at the same time.

Rated 4 out of 5 stars (70)
11,226 users

Porn Blocker

Blocks access to websites with adult content. The easiest way to protect your children and your family against porn.

Rated 4 out of 5 stars (76)
6,132 users

YouTube use Flash Player Compatible with Firefox 57+

Force YouTube to use Flash player over the HTML5 player

Rated 4 out of 5 stars (130)
5,947 users

Toggle JavaScript Enabled

Toggle whether JavaScript is enabled globally or not. Adds a menu entry and an icon to the URL/title bar.

Rated 4 out of 5 stars (17)
5,919 users

RoboForm-Android

Allows to use Logins and Boorkmarks from RoboForm installed on your Android device.

Rated 4 out of 5 stars (163)
5,559 users

Skip adf.ly skip!!

This addon allows you to skip automatically advertising adf.ly.
Basically when the page loads the site adf.ly with various advertisements, the add-on does go directly to the site you want, but waiting a few seconds.
It is compatible with Android.

Rated 4 out of 5 stars (28)
4,997 users