My Must Have!

by LandisTwo

27 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 5,808 reviews

14,030,231 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 446 reviews

510,426 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 908 reviews

376,621 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 278 reviews

207,060 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 284 reviews

290,851 users

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

Session Manager by Michael Kraft

Rated 4 out of 5 stars 518 reviews

237,702 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 1,143 reviews

245,614 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...

FT DeepDark by steva

Smooth dark theme for Firefox.

Beta version (Firefox 56 compatible) available on > development channel <

DOM Inspector by SeaMonkey Council

Rated 5 out of 5 stars 75 reviews

71,406 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 110 reviews

26,710 users

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

Spell Checker by Gaurang033

Rated 3 out of 5 stars 95 reviews

10,531 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 109 reviews

6,358 users

Enables accelerated human processing of DOM

www.Translate by Trident Software

Rated 4 out of 5 stars 29 reviews

5,299 users

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

Hide Tabbar by mr321

Rated 4 out of 5 stars 88 reviews

11,257 users

Hide the tabbar by just pressing a key.

abcTajpu by Aaron Irvine

Rated 4 out of 5 stars 69 reviews

2,476 users

Type in accented letters, international characters or symbols into Firefox or Thunderbird, either simply by using a context menu (there being support for many languages), or quickly by keyboard macro. From Firefox 57 onward, please install abcTajpu2.
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