Nice to have

by TriMoon

21 Add-ons in this Collection

FoxyProxy Standard by Eric H. Jung, groeg, others

Rated 4 out of 5 stars 332 reviews

358,435 users

FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.

Webmail Ad Blocker by Jason

Rated 4 out of 5 stars 178 reviews

152,476 users

Expand your email area by blocking and removing ads on the right hand side of the screen when using Gmail, Hotmail, Outlook.com and Yahoo Mail.

JSONView by Ben Hollis

Rated 5 out of 5 stars 125 reviews

106,529 users

View JSON documents in the browser.

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.

UnPlug by h2g2bob

Rated 4 out of 5 stars 238 reviews

57,377 users

UnPlug is an extension which lets you save video and audio which is embedded on a webpage - it's a video download tool.

Roomy Bookmarks Toolbar by Someone free

Rated 4 out of 5 stars 229 reviews

59,101 users

Make your bookmarks bar better. Roomy Bookmarks Toolbar can: hide bookmarks/folders name(dock like), multirow, autohide and many another features(more than 20).
Customize your bookmarks bar using one add-on.

Rainbow Color Tools by Heather Arthur

Rated 5 out of 5 stars 90 reviews

43,454 users

Color tools for web development.

Color picker and eyedropper + saving colors and trying out colors with drag and drop.

Vlc context menu by Helga Tauscher, Feuerluchs

Rated 4 out of 5 stars 13 reviews

42,929 users

Add URLs of audio and video files to VLCs playlist via context menu of your browser

Phoenix by pc-facile.com

Rated 4 out of 5 stars 42 reviews

5,385 users

An editor with real time syntax highlighting which allows edit, run and test CSS, HTML and JavaScript code. Phoenix will tell you how many CSS and JS files are loaded into a page, how big these are, it will let you edit, pack and de-obfuscate them.

DOM Inspector by SeaMonkey Council

Rated 5 out of 5 stars 59 reviews

155,063 users

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

FireQuery by BinaryAge, Jan Odvarko

Rated 4 out of 5 stars 50 reviews

41,439 users

Firebug plugin for jQuery development

Nightly Tester Tools by Automation Development, Tony Mechelynck, others

Rated 4 out of 5 stars 189 reviews

44,799 users

Useful tools for the nightly tester.

Javascript Deminifier by Ben Murphy

Rated 4 out of 5 stars 17 reviews

14,465 users

This addon will deminify javascript before it is downloaded. This is useful when using firebug to debug a javascript application that uses javascript that has been minified.

MediaPlayerConnectivity by Sethnakht

Rated 4 out of 5 stars 148 reviews

23,253 users

Allow you to launch embed video of website in an external application with a simple click ...
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