by MarSanMar

35 Add-ons in this Collection

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 251 reviews

369,890 users

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

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,547 reviews

910,416 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.

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 306 reviews

288,370 users

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

FirePHP by cadorn

Rated 4 out of 5 stars 47 reviews

49,557 users

FirePHP enables you to log to your Firebug Console using a simple PHP method call.

Not using Firebug 1.9+ on Firefox 8+? See

CodeBurner for Firebug by SitePoint

Rated 3 out of 5 stars 34 reviews

32,812 users

CodeBurner is a Firefox add-on that integrates with Firebug, to extend it with reference material for HTML and CSS.

Firefinder for Firebug by Robert Nyman

Rated 3 out of 5 stars 28 reviews

22,433 users

Finds HTML elements matching chosen CSS selector(s) or XPath expression

Update Scanner by sneakypete81

Rated 4 out of 5 stars 203 reviews

29,740 users

Monitors web pages for updates. Useful for websites that don't provide Atom or RSS feeds.

AddThis by AddThis

Rated 4 out of 5 stars 236 reviews

67,407 users

AddThis for Firefox is the best add-on to make sharing and bookmarking simple. Have all your favorite web 2.0 social networking, bookmarking, blogging, and e-mail services at your fingertips. Share any page, anytime, with anyone.

FireQuery by BinaryAge, Jan Odvarko

Rated 4 out of 5 stars 52 reviews

29,644 users

Firebug plugin for jQuery development

QuickDrag by Stevie Smith

Download Now


Rated 4 out of 5 stars 319 reviews

36,313 users

Extends the function of the drag-and-drop mouse gesture so that it can be used to load URLs, do a web search of selected text on a page, or save an image on a page. The successor to Super DragAndGo.

Gmail Manager by Todd Long

Download Now


Rated 4 out of 5 stars 1,345 reviews

112,630 users

The original Gmail notifier for multiple accounts. Allows you to receive new mail notifications along with viewing account details including unread messages, saved drafts, spam messages, labels with new mail, space used, and new mail snippets.

Screengrab by Andy M

Rated 4 out of 5 stars 587 reviews

23,625 users

Screengrab! saves webpages as images... but not for new versions of Firefox.

FF changes too fast and I don't have the time to maintain it anymore. Bugs have developed that I am not in a position to investigate.

Therefore, Screengrab is EOL.

New Tab King by Eddie Weber, Adam Green

Rated 5 out of 5 stars 185 reviews

28,396 users

New Tab King is the premier extension for turning your new tab page into a beacon of productivity and efficiency.

Featuring a todo list, recently closed tabs, most visited pages and more!

Tons of visual customization option too!

Personal Menu (Personal Firefox Button) by Merci chao

Bring back your personal and powerful Firefox Button!

Better Gmail 2 by Gina Trapani

Rated 4 out of 5 stars 516 reviews

15,299 users

Add useful extra features to Gmail, like hierarchical labels, an unread message icon on your browser tab, file attachment icons, and more.
  1. 1
  2. 2
  3. 3
Results 115 of 35

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

Recently Viewed