Top-Rated Extensions

Subscribe

AutoPager

AutoPager automatically loads next pages when you reach the end of a page. It works on a ton of sites,Google,Yahoo..
It works well with most other add-ons adblock plus, WOT and most of the greasemonkey scripts.
You can also try AutoPagerLite.

Rated 4 out of 5 stars (403)
62,632 users

Click-to-Play Manager No Restart

Manages the Click-to-Play domain whitelist.

Rated 5 out of 5 stars (10)
3,859 users

TryAgain

TryAgain keeps trying to load a webpage when the server cannot be reached.

Rated 4 out of 5 stars (64)
6,257 users

Search Engine Security

Protects against Blackhat spam SEO in search engines (Google, Bing & Yahoo).

Rated 5 out of 5 stars (10)
3,498 users

Big Navigation No Restart

Increases the navigation links on the pages

Rated 5 out of 5 stars (5)
926 users

No More Install Delay No Restart

UPDATE: XPI delay has been removed in Firefox 40!

Disable the install delay in Firefox. New 2.0 version now includes GreaseMonkey scripts!

Unlike similar addons, this works on Firefox 4 and beyond.

Rated 5 out of 5 stars (14)
1,026 users

Mobile Tools

Tools for working with web pages in Firefox Mobile

Rated 5 out of 5 stars (8)
55 users

MR Tech Toolkit

(Formerly Local Install) The primary goal of this extension is to provide the tools needed to install and manage extensions and themes locally and tons of other features.

Note: With Toolkit 6.0 Auto Archiving is fully working in Firefox 2.0 and temp...

Rated 4 out of 5 stars (143)
50,414 users

Reading List

Save pages for reading offline

Rated 5 out of 5 stars (5)
29 users

JSONovich No Restart

Pretty-prints JSON content in the browser for easy, unobtrusive viewing.

Rated 4 out of 5 stars (33)
9,158 users

URL Fixer No Restart Featured

URL Fixer fixes common typos in URLs entered in the address bar. It will fix errors like "google.con" or "youtube,com". You have the option of being asked to confirm corrections before they are applied.

Rated 4 out of 5 stars (100)
18,665 users

Yoolki Arabic Keyboard

Write arabic text "bil 3arabi" on any web page without the need for an Arabic Keyboard.

Rated 5 out of 5 stars (10)
208 users

Extension Test

A simple add-on for extension testers, especially AMO editors and developers who plan to submit their add-ons to AMO.

Rated 5 out of 5 stars (6)
150 users

Stylish-Custom

custom additions to Stylish extension.
brings back features from 0.5.9 and adds new features

I can't be bothered to change SC, so amo will allow it to be uploaded
http://choggi.org/misc/Stylish-Custom/

Rated 4 out of 5 stars (36)
2,427 users

URL Fixer Plus RU and UA

Extended URL Fixer for RU and UA

Rated 4 out of 5 stars (20)
59,457 users

Xultris

Xultris is a variant of the computer game classic Tetris.

Rated 4 out of 5 stars (15)
886 users

Google Reader New Style Minimalistic By DemianGod No Restart

Removes all the junk from New Google Reader and just gives you the search and collapsable subscriptions + favicons. By DemianGod

Also you can install the Script for GreaseMonkey.
Download from: http://userscripts.org/scripts/show/30242

Rated 4 out of 5 stars (9)
238 users

LastPass Password Manager

LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.

Rated 4 out of 5 stars (1,227)
407,203 users

Jureeka! Powered by LII.

Surf the legal web you didn't know was there!
Jureeka simplifies online legal research by transforming plain-text legal citations into direct links to the source material, now powered by the free law pioneers at the Legal Information Institute.

Rated 4 out of 5 stars (11)
112 users

NextPage for mobile No Restart

A button in the navigation toolbar,auto find and navigate to the next page for you.It works for all sites.

Rated 5 out of 5 stars (3)
580 users