Conociendo

by MarSanMar

33 Add-ons in this Collection

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,468 reviews

564,847 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.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 278 reviews

206,420 users

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

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 387 reviews

167,135 users

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

CodeBurner for Firebug by SitePoint

Rated 3 out of 5 stars 35 reviews

16,553 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

13,707 users

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

Personal Menu (Personal Firefox Button) by Merci chao

Bring back your personal and powerful Firefox Button!

Update Scanner by sneakypete81

Rated 4 out of 5 stars 226 reviews

16,291 users

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

FirePHP by cadorn

Rated 4 out of 5 stars 51 reviews

19,206 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/

Screengrab by Andy M

Rated 4 out of 5 stars 575 reviews

10,838 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.

AutoPager by Wind Li

Download Now

Experimental

Rated 4 out of 5 stars 391 reviews

15,404 users

AutoPager automatically loads next pages when you reach the end of a page. It works on a ton of sites,Google,Yahoo..
It works well with most other add-ons adblock plus, WOT and most of the greasemonkey scripts.
You can also try AutoPagerLite.

View Cookies by Edwin Martin

Rated 4 out of 5 stars 49 reviews

18,910 users

It adds a tab to the Page Info dialog box, which shows the cookies belonging to the current page. View Cookies will not be rewritten as a WebExtension and might stop working with a new Firefox release.

URL Link by Neil Bird

URL Link is a small Firefox and Thunderbird extension that allows you to select a non-URL in a mail/news message or web-page, and open it in a browser window.

Gmail Manager by Todd Long

Download Now

Experimental

Rated 4 out of 5 stars 1,154 reviews

30,915 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.

Fission by zeniko

Rated 4 out of 5 stars 361 reviews

1,317 users

Fission combines address bar and progress bar (Safari style). This makes the progress bar more visible and allows for a nice visual effect.

FireQuery by BinaryAge, Jan Odvarko

Rated 4 out of 5 stars 54 reviews

8,808 users

Firebug plugin for jQuery development
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