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by XcomeX

25 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,825 reviews

2,165,799 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 986 reviews

1,297,198 users

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

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,589 reviews

843,708 users

Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager.

Classic Theme Restorer by Aris

Rated 5 out of 5 stars 1,096 reviews

437,109 users

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

All builds & changelogs on versions page!

Flashblock by Philip Chee

Rated 4 out of 5 stars 1,209 reviews

596,933 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...

Speed Dial by Josep del Rio

Rated 4 out of 5 stars 1,271 reviews

379,523 users

Direct access to your most visited websites

Awesome Screenshot Plus - Capture, Annotate & More by Diigo Inc.

Rated 4 out of 5 stars 1,125 reviews

197,849 users

Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and text, blur sensitive info, one-click upload to share. And more!

Session Manager by Michael Kraft

Rated 5 out of 5 stars 459 reviews

289,324 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.

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 306 reviews

273,264 users

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

Adblock Edge by adstomper

Download Now

Experimental

Rated 5 out of 5 stars 307 reviews

500,600 users

Adblock Edge is a fork of the Adblock Plus version 2.1.2 extension for blocking advertisements on the web, without sponsored ads whitelist.

**This addon has been discontinued**

Beyond Australis by Quicksaver

Rated 5 out of 5 stars 282 reviews

34,670 users

Australis was the code name for the current Firefox theme, it aimed to make a great browser look awesome. Now you can go one step further and also make it feel awesome to use!

PDF Download by Nitro PDF Software

Download Now

Experimental

Rated 2 out of 5 stars 689 reviews

93,773 users

Use PDF Download to do whatever you like with PDF files on the Web. Regain control and eliminate browser problems, view PDFs directly in Firefox as HTML, and use the all-new Web-to-PDF toolbar to save and share Web pages as high-quality PDF files.

Hide Caption Titlebar Plus by Javier "DarthMadara"

Rated 5 out of 5 stars 403 reviews

23,991 users

"Maximize your screen space by adjusting Firefox window TitleBar, borders, Tabs, Toolbars, etc!", with 'smart' options, *optional* custom caption & resizers.  
Multiple Configurable Actions for both screen-corner buttons: Firefox & Close buttons!

about:addons-memory by Nils Maier

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

QuickMark by Martijn Joosstens

Rated 5 out of 5 stars 44 reviews

11,222 users

A quick and minimalistic way to create bookmarks.
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