FavOns

by li7hium

43 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 5,040 reviews

22,517,715 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 6,093 reviews

4,801,932 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 1,807 reviews

2,411,805 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 1,650 reviews

1,400,993 users

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

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 970 reviews

1,321,910 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 1,530 reviews

2,454,475 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.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 256 reviews

406,023 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Web Developer by chrispederick

Rated 5 out of 5 stars 222 reviews

575,713 users

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

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 306 reviews

309,285 users

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

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 341 reviews

163,662 users

Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

HackBar by Johan Adriaans, Pedro Laguna

Rated 4 out of 5 stars 41 reviews

32,052 users

Simple security audit / Penetration test tool.

SearchPreview by Edward Ackroyd

Rated 4 out of 5 stars 392 reviews

94,236 users

The main feature of SearchPreview is to enhance your search results pages. It inserts site preview images (thumbnails), popularity ranks and sponsored links (where available) into Google™, DuckDuckGo™, Yahoo™ and Bing™ searches.

FirePHP by cadorn

Rated 4 out of 5 stars 48 reviews

51,314 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/

Firefinder for Firebug by Robert Nyman

Rated 3 out of 5 stars 28 reviews

24,032 users

Finds HTML elements matching chosen CSS selector(s) or XPath expression

BugMeNot by retailmenot

Rated 4 out of 5 stars 219 reviews

38,576 users

Bypass compulsory web registration with the context menu via www.bugmenot.com.
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