User Interface

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Sun Cult Requires Restart

Worldwide Sunrise, Sunset, Twilight, Moonrise and Moonset...

Rated 5 out of 5 stars (117)
3,945 users

lolifox - Fierr MOD Requires Restart

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

Rated 5 out of 5 stars (20)
3,641 users

Dorando keyconfig Requires Restart

A modified Dorando's tool to rebind keys in Mozilla apps. It is designed to be a drop-in replacement, and will keep your old settings. (See details for upgrade instructions.)

As of version 2016.2, Custom keys (using custom JavaScript) works again!

Rated 5 out of 5 stars (19)
1,851 users

Fierr Requires Restart

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

Rated 5 out of 5 stars (51)
2,080 users

DOM Inspector Requires Restart

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 (69)
111,876 users

AVIM Requires Restart

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

Rated 5 out of 5 stars (33)
3,086 users

TabsInForeground

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

Rated 5 out of 5 stars (15)
1,744 users

AutoPager Requires Restart

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 (408)
36,214 users

Big Navigation

enlarging the navigation links on the pages

Rated 5 out of 5 stars (6)
661 users

JSONovich

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

Rated 4 out of 5 stars (36)
8,536 users

Mobile Tools Requires Restart

Tools for working with web pages in Firefox Mobile

Rated 5 out of 5 stars (8)
31 users

AntiGameOrigin v6

AntiGameOrigin - the other OGame experience for all communities.

Rated 5 out of 5 stars (4)
10,619 users

URL Fixer Plus RU and UA Requires Restart

Extended URL Fixer for RU and UA

Rated 4 out of 5 stars (20)
64,912 users

No More Install Delay

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 4 out of 5 stars (12)
683 users

NextPage for mobile

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)
377 users

South African English spell checker Requires Restart

The South African English spell checker allows you to use place names, borrowed words, and other expressions that are unique to South Africa.

"No more eina, just a lekker spell checker!"

Rated 5 out of 5 stars (3)
2,021 users

Fastest Scroll In The West Requires Restart

Scroll quickly the page. For navigation in long or large pages.

This extension is one of the Firefox Mobile Add-on Challenge Winners!

Rated 5 out of 5 stars (4)
2 users

Cloud Viewer

Open various types of files in Google Docs Viewer

Rated 4 out of 5 stars (44)
3,164 users

URLFilter

Block advertisement and access to adult sites

Rated 4 out of 5 stars (15)
3,767 users

LinkyMobile

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

Rated 4 out of 5 stars (5)
725 users