!!!Must Have for All

by asnpost

27 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,811 reviews

20,215,459 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 6,588 reviews

4,355,712 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 1,827 reviews

2,124,419 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...

FoxyProxy Standard by Eric H. Jung, groeg, others

Rated 4 out of 5 stars 358 reviews

285,549 users

FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.

FlashGot Mass Downloader by Giorgio Maone

Rated 5 out of 5 stars 532 reviews

817,943 users

Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.

Web Developer by chrispederick

Rated 5 out of 5 stars 233 reviews

483,562 users

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

Speed Dial by Josep del Rio

Rated 4 out of 5 stars 1,272 reviews

363,223 users

Direct access to your most visited websites

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 309 reviews

268,106 users

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

Session Manager by Michael Kraft

Rated 4 out of 5 stars 469 reviews

283,916 users

Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.

FEBE by Chuck_Baker

Rated 4 out of 5 stars 654 reviews

111,315 users

FEBE (Firefox Environment Backup Extension) allows you to quickly and easily backup your Firefox extensions. In fact, it goes beyond just backing up -- It will actually rebuild your extensions individually into installable .xpi files.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 352 reviews

140,706 users

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

ReminderFox by Tom Mutdosch, Daniel Lee

Rated 4 out of 5 stars 527 reviews

83,157 users

ReminderFox displays and manages lists of reminders and ToDo's. ReminderFox makes sure you remember all of your important dates via easy-to-use lists, alerts, and alarms, right in your browser without the need for a separate calendar program.

Fast Dial by telega

Rated 3 out of 5 stars 2,515 reviews

116,242 users

Visual bookmarks for Firefox.

ShowIP by ShowIP Dev Team

Download Now

Experimental

Rated 3 out of 5 stars 286 reviews

48,219 users

Show the IP address of the current page in the status bar. It also allows querying custom information services by IP (right click) and see location and avaiable vouchers for shopping sites. Additionally you can copy the IP address to the clipboard.

YSlow by YSlow

Rated 3 out of 5 stars 208 reviews

82,167 users

YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.
http://yslow.org is the official open source website.
  1. 1
  2. 2
Results 115 of 27

What are Collections?

Collections are groups of related add-ons that anyone can create and share.

Explore Collections