by alxbay

13 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,984 reviews

21,231,998 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 5 out of 5 stars 1,793 reviews

2,317,059 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...

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 5 out of 5 stars 1,614 reviews

1,365,361 users

The first and only download manager/accelerator built inside Firefox!

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 959 reviews

1,264,935 users

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

Speed Dial by Josep del Rio

Rated 4 out of 5 stars 1,246 reviews

424,299 users

Direct access to your most visited websites

FireGestures by Gomita

Rated 4 out of 5 stars 877 reviews

384,562 users

A customizable mouse gestures extension which enables to execute various commands and user scripts with six types of gestures.

Xmarks Sync by Xmarks Inc.

Rated 4 out of 5 stars 2,518 reviews

314,523 users

Xmarks is the #1 bookmarking and open tab add-on. Keep your bookmarks, and open tabs backed up and synchronized across computers and browsers. Mobile phones with Premium access. Utilize LastPass to sync passwords!

JavaScript Debugger by James Ross, Robert Ginda, others

Rated 4 out of 5 stars 50 reviews

133,397 users

As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.

Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aimed to provide a powerful JavaScript debugging environment for Mozilla based browsers.

Session Manager by Michael Kraft

Rated 4 out of 5 stars 568 reviews

283,041 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.

YSlow by YSlow

Rated 3 out of 5 stars 195 reviews

101,438 users

YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages. is the official open source website.

Download Statusbar by C.J.

Download Now


Rated 4 out of 5 stars 1,462 reviews

458,591 users

View and manage downloads from a tidy statusbar - without the download window getting in the way of your web browsing.

Thanks Tekzilla for your awesome review! Click here to see their video:

Hide Menubar by yuoo2k

Supports to hide Menu Bar automatically, you can press the ALT key to show it temporarily.

Smart Bookmarks Bar by Remy Juteau

Rated 4 out of 5 stars 486 reviews

4,297 users

Note from Mozilla: This add-on has been discontinued. Try Roomy Bookmarks Toolbar instead.

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