My Must Have!

by LandisTwo

29 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,932 reviews

19,926,500 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).

Download Flash and Video by Download Flash and Video

Rated 4 out of 5 stars 406 reviews

634,816 users

Download Flash and Video is a great download helper tool that lets you download Flash games and Flash videos (YouTube, Facebook, Dailymotion, Google Videos and more) with a single click.
The downloader is very easy to use.

Stylish by userstyles.org

Rated 4 out of 5 stars 857 reviews

447,649 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.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 265 reviews

322,085 users

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

Web Developer by chrispederick

Rated 5 out of 5 stars 252 reviews

449,334 users

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

Flashblock by Philip Chee

Rated 4 out of 5 stars 1,222 reviews

515,387 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...

Session Manager by Michael Kraft

Rated 4 out of 5 stars 497 reviews

287,823 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.

DOM Inspector by SeaMonkey Council

Rated 5 out of 5 stars 70 reviews

120,828 users

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

Scriptish by Erik Vold, Nils Maier, others

Rated 4 out of 5 stars 119 reviews

60,579 users

The greatest user script engine on the Internet (a fork of Greasemonkey).

www.Translate by Trident Software

Rated 4 out of 5 stars 31 reviews

9,918 users

Multi-Translator from Google, Bing and Pragma.
Translation tool for your Firefox and Thunderbird with a simple and friendly interface.

Spell Checker by Gaurang033

Rated 3 out of 5 stars 86 reviews

14,313 users

Checks the (whole) web page (and not the text inside edit box) for spelling mistakes and highlights it.

View Source Chart by Jennifer Madden

Rated 5 out of 5 stars 110 reviews

11,437 users

Inspect the DOM at lightning speed.

Hide Tabbar by mr321

Rated 4 out of 5 stars 83 reviews

6,249 users

Hide the tabbar by just pressing a key.

Show Parent Folder by White Alice0775

Rated 5 out of 5 stars 126 reviews

8,741 users

Show Parent Folder in list view of Library.
  1. 1
  2. 2
Results 115 of 29

What are Collections?

Collections are groups of related add-ons that anyone can create and share.

Explore Collections

More by this User

See all collections by this user