addons I've Used

by LandisTwo

47 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 5,752 reviews

14,301,995 users

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).

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,124 reviews

1,343,593 users

Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 1,200 reviews

883,124 users

Customize the way a web page displays or behaves, by using small bits of JavaScript.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 277 reviews

218,995 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Stylish by userstyles.org

Rated 4 out of 5 stars 900 reviews

381,392 users

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.

SQLite Manager by lazierthanthou

Rated 4 out of 5 stars 83 reviews

144,960 users

Manage any SQLite database on your computer.

Web Developer by chrispederick

Rated 5 out of 5 stars 280 reviews

302,758 users

The Web Developer extension adds various web developer tools to the browser.

Classic Theme Restorer by Aris

Rated 5 out of 5 stars 1,110 reviews

324,956 users

Squared tabs, appmenu, add-on bar, small button view and many more 'old' features for Firefox 29-56 (Windows / MacOSX / Linux).

Release builds
Beta builds

Session Manager by Michael Kraft

Rated 4 out of 5 stars 494 reviews

239,566 users

Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.

Flashblock by Philip Chee

Rated 4 out of 5 stars 1,142 reviews

286,139 users

Never be annoyed by a Flash animation again! Blocks Flash so it won't get in your way, but if you want to see it, just click on...

Tree Style Tab by Piro (piro_or)

Rated 4 out of 5 stars 1,307 reviews

85,843 users

Show tabs like a tree.

Personal Menu (Personal Firefox Button) by Merci chao

Bring back your personal and powerful Firefox Button!

Yandex.Bar by Yandex

Download Now

Experimental

Rated 2 out of 5 stars 323 reviews

530,177 users

Advanced toolbar for Firefox

Tab Counter by Michael Kraft

Rated 4 out of 5 stars 113 reviews

14,912 users

A simple extension that counts the number of open tabs per window and displays the count in the toolbar...

Tilt 3D by Victor Porof, robcee

Rated 4 out of 5 stars 42 reviews

14,193 users

A WebGL-based 3D visualization of a webpage.
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