Default extensions

by Asmodeus Dh'oine

49 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,839 reviews

21,903,066 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 5,240 reviews

5,474,495 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 1,761 reviews

2,722,204 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 1,567 reviews

1,514,575 users

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

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 940 reviews

1,350,741 users

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

Element Hiding Helper for Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 435 reviews

880,669 users

Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 238 reviews

429,568 users

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

Flashblock by Philip Chee

Rated 4 out of 5 stars 1,130 reviews

866,054 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...

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 917 reviews

653,052 users

FireFTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers.

Check out my new project, FireSSH!

Xmarks Sync by Xmarks Inc.

Rated 4 out of 5 stars 2,507 reviews

361,189 users

Xmarks is the #1 bookmarking and open tab add-on. Keep your bookmarks, and open tabs backed up and synchronized across computers and browsers. Mobile phones with Premium access. Utilize LastPass to sync passwords!

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 300 reviews

300,909 users

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

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 327 reviews

174,851 users

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

ChatZilla by Gijs Kruitbosch, Robert Ginda, others

Rated 4 out of 5 stars 125 reviews

170,088 users

A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.

Tweak Network by Edwin Martin

Rated 4 out of 5 stars 121 reviews

24,789 users

Tweak Network will speed up the loading of web pages and increase the maximum number of simultaneous downloads from a site.

Lazarus: Form Recovery by Seth Wagoner

Rated 4 out of 5 stars 345 reviews

55,034 users

Never lose anything you type into a web form again! Lazarus securely auto-saves all forms as you type, so after a crash, server timeout, or whatever, you can go back to the form, right click, "recover form", and breathe a sigh of relief.
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