Felix's Add-ons

by Felix Grey

12 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,857 reviews

19,743,763 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).

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 4 out of 5 stars 1,795 reviews

1,212,279 users

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

Web Developer by chrispederick

Rated 5 out of 5 stars 248 reviews

435,471 users

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

Flashblock by Philip Chee

Rated 4 out of 5 stars 1,219 reviews

517,261 users

Never be annoyed by a Flash animation again! Blocks Flash so it won't get in your way, but if you want to see it, just click on...

Tamper Data by Adam Judson

Rated 4 out of 5 stars 140 reviews

99,294 users

Use tamperdata to view and modify HTTP/HTTPS headers and post parameters...

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 309 reviews

241,567 users

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

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 358 reviews

126,347 users

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

gtranslate by Pau Tomàs, Pierre Bertet, others

Rated 4 out of 5 stars 516 reviews

75,709 users

With gtranslate you can translate any text in a web page just by selecting and right-clicking over it. The extension uses the Google translation services to translate the text.

CodeBurner for Firebug by SitePoint

Rated 3 out of 5 stars 34 reviews

24,799 users

CodeBurner is a Firefox add-on that integrates with Firebug, to extend it with reference material for HTML and CSS.

Nuke Anything Enhanced by Patrick Abi Salloum

Rated 5 out of 5 stars 125 reviews

20,478 users

Allows you to hide almost anything via context menu 'Remove Object'.

ErrorZilla Plus by Crend King

Rated 4 out of 5 stars 51 reviews

1,709 users

This extension is a replacement of Firefox official error page, which adds some useful tools to aid your troubleshooting.

The tools include:
- Google Cache (view the page cached by Google)
- Coralize (use Coral CDN proxy to connect again)
- Wayback ...

Ubiquity by matyr

Download Now

Experimental

Rated 5 out of 5 stars 125 reviews

1,200 users

An extension that allows for the use of dynamic commands in Firefox.

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