User Interface

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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 (390)
6,261 weekly downloads

Full Screen mobile No Restart

Make Firefox for Android use the whole screen

Rated 3 out of 5 stars (80)
1,557 weekly downloads

DOM Inspector

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

Rated 5 out of 5 stars (59)
1,453 weekly downloads

Cloud Viewer No Restart

Open various types of files in Google Docs Viewer

Rated 4 out of 5 stars (41)
1,305 weekly downloads

URLFilter No Restart

Block advertisement and access to adult sites

Rated 4 out of 5 stars (13)
786 weekly downloads

lolifox - Fierr MOD

Replaces the error page with a lolifox appearance with additional features.

Rated 5 out of 5 stars (13)
622 weekly downloads

JSONovich No Restart

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

Rated 4 out of 5 stars (30)
471 weekly downloads

TabsInForeground No Restart

Always open Tabs in foreground. Use system back button to close again.

Rated 5 out of 5 stars (12)
408 weekly downloads

Safe for Amoled No Restart

Darkens the background of the page

Rated 4 out of 5 stars (18)
375 weekly downloads

AutoAuth

AutoAuth automatically submits HTTP authentication dialogs when you’ve chosen to have the browser save your login information.

Rated 4 out of 5 stars (47)
375 weekly downloads

Fierr

Replaces the error page with a more stylish appearance with additional features.

Rated 5 out of 5 stars (50)
348 weekly downloads

AVIM

An input method editor (IME) for Vietnamese. Type Vietnamese diacritics directly into any Web page, Web app, or dialog box.
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Bộ gõ tiếng Việt cho phép đặt dấu trực tiếp vào bất kỳ trang Web, ứng dụng Web, và hộp thoại.

Rated 5 out of 5 stars (30)
289 weekly downloads

Cloud Printer No Restart

Add support for printing webpages using Google Cloud Print

Rated 1 out of 5 stars (11)
280 weekly downloads

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 (38)
224 weekly downloads

LinkyMobile No Restart

LinkyMobile is a Firefox/Firefox Mobile Addon to converts text links into genuine, clickable links.

Rated 4 out of 5 stars (5)
220 weekly downloads

Big Navigation No Restart

Increases the navigation links on the pages

Rated 5 out of 5 stars (4)
190 weekly downloads

URL Fixer Plus RU and UA

Extended URL Fixer for RU and UA

Rated 4 out of 5 stars (20)
173 weekly downloads

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)
150 weekly downloads

travally

Remplace les chargeurs habituels de Travally en envoyant depuis votre navigation Travian les données à analyser sur Travally.

Not yet rated
71 weekly downloads

Search Selected No Restart

Search for selected text using default search engine.

Rated 4 out of 5 stars (4)
60 weekly downloads