My Favorite Add-ons

by Zulkarnain K.

133 Add-ons in this Collection

Firefox OS 1.1 Simulator by Myk Melez, J. Ryan Stinnett

Firefox OS Simulator is a test environment for Firefox OS. Use it to test your apps in a Firefox OS-like environment that looks and feels like a mobile phone. After installing it, go to Web Developer > Firefox OS Simulator to access its features.

HttpFox by Martin Theimer

Rated 4 out of 5 stars 154 reviews

118,676 users

An HTTP analyzer addon for Firefox

Cookies Manager+ by V@no

Rated 4 out of 5 stars 60 reviews

119,197 users

Cookies manager to view, edit and create new cookies. It also shows extra information about cookies, allows edit multiple cookies at once and backup/restore them.

Download Manager Tweak by squashr1979, andman42

Rated 4 out of 5 stars 351 reviews

128,470 users

Allows the download manager to also open in a tab or sidebar, and adds some optional display changes.

Image Zoom by Jason Adams

Rated 4 out of 5 stars 310 reviews

209,471 users

Adds zoom and rotation functionality for images...

JSONView by Ben Hollis

Rated 5 out of 5 stars 115 reviews

85,444 users

View JSON documents in the browser.

Private Tab by Infocatcher

Rated 5 out of 5 stars 136 reviews

69,805 users

Adds private tabs.

Scriptish by Erik Vold, Nils Maier, others

Rated 4 out of 5 stars 92 reviews

83,929 users

The greatest user script engine on the Internet (a fork of Greasemonkey).

Saved Password Editor by Daniel Dawson

Rated 5 out of 5 stars 167 reviews

93,340 users

Adds the ability to create and edit entries in the password manager.

RefControl by James Abbatiello

Rated 4 out of 5 stars 151 reviews

106,540 users

Control what gets sent as the HTTP Referer on a per-site basis.

JavaScript Deobfuscator by Wladimir Palant

Rated 4 out of 5 stars 19 reviews

55,515 users

This add-on shows you what JavaScript code runs on a web page, even if it is obfuscated and generated on the fly. Simply open JavaScript Deobfuscator from the Web Developer menu and watch the scripts being compiled/executed.

Add to Search Bar by Dr. Evil

Rated 5 out of 5 stars 518 reviews

105,568 users

Make any pages' search functionality available in the Search Bar (or "search box")...

Html Validator by Marc Gueury

HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon

For Firefox 23+, you need 0.958 (under review)
http://users.skynet.be/mgueury/mozilla

Pearl Crescent Page Saver Basic screenshot tool by Kathleen Brade, Mark Smith

Rated 4 out of 5 stars 66 reviews

83,103 users

Save an image of a web page (including Flash content) to a file. Web page screenshots may be captured interactively or from the command line. Options allow you to control the output format (PNG or JPEG), image file name, scaling, and much more.

about:addons-memory by Nils Maier

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