Conociendo

by MarSanMar

35 Add-ons in this Collection

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 267 reviews

306,389 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 2,636 reviews

771,146 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 316 reviews

237,165 users

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

View Cookies by Edwin Martin

Rated 4 out of 5 stars 46 reviews

25,296 users

It adds a tab to the Page Info dialog box, which shows the cookies belonging to the current page.

FirePHP by cadorn

Rated 4 out of 5 stars 48 reviews

37,221 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 http://firephp.org/

Firefinder for Firebug by Robert Nyman

Rated 3 out of 5 stars 28 reviews

17,527 users

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

Screengrab by Andy M

Rated 4 out of 5 stars 587 reviews

17,903 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.

AddThis by AddThis

Rated 4 out of 5 stars 246 reviews

39,118 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.

Update Scanner by sneakypete81

Rated 4 out of 5 stars 225 reviews

24,643 users

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

CodeBurner for Firebug by SitePoint

Rated 3 out of 5 stars 35 reviews

23,259 users

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

QuickDrag by Stevie Smith

Download Now

Experimental

Rated 4 out of 5 stars 331 reviews

30,151 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.

FireQuery by BinaryAge, Jan Odvarko

Rated 4 out of 5 stars 55 reviews

20,202 users

Firebug plugin for jQuery development

Personal Menu (Personal Firefox Button) by Merci chao

Bring back your personal and powerful Firefox Button!

New Tab King by Eddie Weber, Adam Green

Rated 4 out of 5 stars 196 reviews

17,504 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!

Gmail Manager by Todd Long

Download Now

Experimental

Rated 4 out of 5 stars 1,345 reviews

66,859 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.
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