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by imoz

19 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 5,326 reviews

16,355,434 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 7,786 reviews

4,302,485 users

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

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,082 reviews

1,661,082 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 4 out of 5 stars 1,771 reviews

1,110,410 users

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

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,566 reviews

2,166,135 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.

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 1,075 reviews

1,079,185 users

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

Web Developer by chrispederick

Rated 5 out of 5 stars 265 reviews

382,053 users

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

SQLite Manager by lazierthanthou

Rated 4 out of 5 stars 77 reviews

176,666 users

Manage any SQLite database on your computer.

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 378 reviews

207,883 users

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

Tree Style Tab by Piro (piro_or)

Download Now

Experimental

Rated 4 out of 5 stars 1,255 reviews

102,573 users

Show tabs like a tree.

Secure Login by Sebastian Tschan, Sarah Av.

Rated 4 out of 5 stars 355 reviews

34,491 users

Secure Login is an extension for Firefox integrated password manager.

For Firefox > 51, try my WebExtension implementation: https://addons.mozilla.org/en-US/firefox/addon/secure-login-webextension/

FirePHP by cadorn

Rated 4 out of 5 stars 50 reviews

31,315 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/

Nightly Tester Tools by Automation Development, Tony Mechelynck, others

Rated 4 out of 5 stars 185 reviews

21,559 users

Useful tools for the nightly tester.

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

Rated 4 out of 5 stars 77 reviews

10,330 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 364 reviews

9,200 users

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