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about:addons-memory

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

Rated 4 out of 5 stars (149)
8 users

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Rainbowpicker Requires Restart

Pick any color of the...

Rated 4 out of 5 stars (18)
1 user

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Track Package Requires Restart

Track Packages from the right-click menu...

Rated 4 out of 5 stars (30)
5 users

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techblocker

Search with Joy! Block Ads While Surfing!

Rated 5 out of 5 stars (3)
6 users

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RSS Editor Requires Restart

Desktop RSS editor for casual editing of RSS 2.0...

Rated 4 out of 5 stars (12)
0 users

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IP Flager

Shows country flag for the website in the location bar.

Rated 5 out of 5 stars (4)
3 users

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XML Digital Signature Tool Requires Restart

XML Digital Signature Tool is a Firefox add-on for processing Digital Signature in XML documents
(Please read the installation instruction in the "Developer Comments" section before downloading)

Rated 5 out of 5 stars (4)
0 users

Download for Linux Download for Mac OS X Download for Windows

CleanHide Requires Restart

if you find some web page use Hidden Text insert in normal articles,try this.

Rated 5 out of 5 stars (3)
0 users

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Closy Requires Restart

Provides close all blank/duplicate tabs and Close all tabs to the left/right plus many other options.

Rated 4 out of 5 stars (32)
2 users

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fixedzoomthumb Requires Restart

Shows Desktop size image when you hover over a thumbnail .Works with many sites including Amazon, Facebook, Flickr, YouTube.

Rated 5 out of 5 stars (3)
1 user

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System Monitor Requires Restart

Provides CPU usage and memory usage graphs on the toolbar.

Rated 4 out of 5 stars (13)
0 users

Download for Linux Download for Mac OS X Download for Windows

JavaScript Debugger Requires Restart

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.

Rated 4 out of 5 stars (52)
1,093 users

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Generic CSS Loader 2 Requires Restart

A very basic CSS loader for Firefox. No fancy features, just an alternative to userChrome and userContent files.

Rated 5 out of 5 stars (3)
2 users

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Linky Requires Restart

Linky will increase your power to handle links. ...

Rated 4 out of 5 stars (126)
4 users

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Live HTTP Headers (clone)

View HTTP headers of a page and while browsing.

This is an unofficial "Live HTTP headers" clone, mainly to fix the Replay feature!

Rated 4 out of 5 stars (17)
3 users

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Colorific

Colorize entire web pages. Configure themes using sliders and drag-and-drop. Set domain preferences for automatic coloration.

Rated 4 out of 5 stars (14)
8 users

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User Agent Changer Requires Restart

Adds a menu and a toolbar button to change the user agent of a browser.

Rated 4 out of 5 stars (8)
5 users

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Page Hacker Revived Requires Restart

Adds a toolbar to edit and format the current page

Rated 4 out of 5 stars (8)
0 users

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Image Zoom (ugly fixes) Requires Restart

An ugly attempt at fixing Image Zoom

Rated 4 out of 5 stars (17)
13 users

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Color Transform

Transform the colors of entire web pages or selected elements. Combine predefined themes with basic transforms. Save transforms for specific web domains.

Rated 4 out of 5 stars (25)
5 users

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