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by imoz

19 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 5,056 reviews

19,109,140 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 8,059 reviews

4,802,624 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 2,118 reviews

2,017,861 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 1,852 reviews

1,233,695 users

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

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,648 reviews

2,209,843 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 1,037 reviews

1,186,897 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 263 reviews

459,013 users

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

SQLite Manager by lazierthanthou

Rated 4 out of 5 stars 70 reviews

200,676 users

Manage any SQLite database on your computer.

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 375 reviews

249,400 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 1,410 reviews

112,254 users

Show tabs like a tree.

FirePHP by cadorn

Rated 4 out of 5 stars 50 reviews

38,501 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 402 reviews

40,961 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/

Nightly Tester Tools by Automation Development, Tony Mechelynck, others

Rated 4 out of 5 stars 195 reviews

24,720 users

Useful tools for the nightly tester.

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

Rated 4 out of 5 stars 77 reviews

11,705 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

10,402 users

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