by imoz

20 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,972 reviews

21,164,866 users

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Video DownloadHelper by mig

Rated 4 out of 5 stars 5,670 reviews

4,799,180 users

The easy way to download and convert Web videos from hundreds of YouTube-like sites.

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,791 reviews

2,215,748 users

Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 5 out of 5 stars 1,611 reviews

1,364,047 users

The first and only download manager/accelerator built inside Firefox!

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 957 reviews

1,260,853 users

Customize the way a web page displays or behaves, by using small bits of JavaScript.

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,500 reviews

2,257,668 users

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 305 reviews

294,326 users

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

Web Developer by chrispederick

Rated 5 out of 5 stars 217 reviews

557,130 users

The Web Developer extension adds various web developer tools to the browser.

SQLite Manager by lazierthanthou

Rated 5 out of 5 stars 39 reviews

197,814 users

Manage any SQLite database on your computer.

Tree Style Tab by Piro (piro_or)

Download Now


Rated 4 out of 5 stars 1,219 reviews

101,105 users

Show tabs like a tree.

FirePHP by cadorn

Rated 4 out of 5 stars 46 reviews

50,819 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/

Secure Login by Sebastian Tschan, Sarah Av.

Rated 4 out of 5 stars 373 reviews

52,462 users

Secure Login is an extension for Firefox integrated password manager.

Nightly Tester Tools by Automation Development, Tony Mechelynck, others

Rated 4 out of 5 stars 191 reviews

35,842 users

Useful tools for the nightly tester.

Certificate Patrol by Carlo v. Loesch, tg(x), others

Rated 4 out of 5 stars 74 reviews

15,105 users

Your browser trusts many certification authorities and intermediate sub-authorities quietly, every time you enter an HTTPS web site. This add-on reveals when certificates are updated, so you can ensure it was a legitimate change.

FaviconizeTab by Kyosuke Takayama

Rated 4 out of 5 stars 359 reviews

14,423 users

This extension adds a new "FaviconizeTab" option to the context menu of the tab...
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