My Favorite Add-ons

by Zulkarnain K.

132 Add-ons in this Collection

Cookies Manager+ by V@no

Rated 4 out of 5 stars 80 reviews

108,881 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.

JSONView by Ben Hollis

Rated 5 out of 5 stars 152 reviews

111,376 users

View JSON documents in the browser.

HttpFox by Martin Theimer

Rated 4 out of 5 stars 166 reviews

90,649 users

An HTTP analyzer addon for Firefox

JavaScript Deobfuscator by Wladimir Palant

Rated 5 out of 5 stars 20 reviews

57,530 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.

Download Manager Tweak by squashr1979, andman42

Rated 4 out of 5 stars 423 reviews

69,029 users

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

New Tab Tools by Geoff Lankow

Rated 4 out of 5 stars 195 reviews

46,585 users

Customizes the new tab page. Add more tiles. Add the launcher from Firefox start. Have a background image. Set new tile images and titles. See recently closed tabs. And more...

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

Rated 4 out of 5 stars 87 reviews

93,050 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.

Image Zoom by Jason Adams

Rated 4 out of 5 stars 336 reviews

156,295 users

Adds zoom and rotation functionality for images...

RefControl by James Abbatiello

Rated 4 out of 5 stars 182 reviews

82,653 users

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

Saved Password Editor by Daniel Dawson

Rated 5 out of 5 stars 222 reviews

93,907 users

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

Private Tab by Infocatcher

Rated 5 out of 5 stars 212 reviews

74,243 users

Adds private tabs.

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.

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 Online HTML 5 validation, you need 0.962
http://users.skynet.be/mgueury/mozilla

QuickNote by Leszek Życzkowski, Jed Brown, others

Rated 5 out of 5 stars 171 reviews

27,254 users

A simple note-taking extension.

Cookie Monster by s1tony

Rated 4 out of 5 stars 260 reviews

41,627 users

Cookie Monster provides proactive cookie management on a site or domain level basis, including 3rd party cookies. Via the Toolbar, it provides easy access to enhanced cookie functionality, while doing so in a non-intrusive manner.
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