Extensions by Name


Styles Tuner

"Styles Tuner" allows you to change fonts and colors for all sites in your browser.

Rated 3 out of 5 stars (17)
1,898 users

StyleSheet Chooser Plus

StyleSheet Chooser Plus (aka SSCP) persists choice of website stylesheets.

Rated 5 out of 5 stars (16)
198 users

Stylish Featured

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.

Rated 4 out of 5 stars (597)
705,940 users

Stylish Sync No Restart

Sync engine for Stylish with backup / restore facility.

Rated 5 out of 5 stars (13)
6,374 users

Stylish Tools

Quicker access to several Stylish features through a toolbar button and/or keyboard shortcuts. Available for Firefox, Thunderbird, and SeaMonkey

Rated 4 out of 5 stars (1)
725 users


abandoned, use Stylish Custom Add-on instead

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

Rated 4 out of 5 stars (35)
3,945 users

Stylus No Restart

This add-on exposes the ability to make GET and POST network requests via the request module. This grants pages from allowed domains (or directory paths) the ability to make such requests whilst not being subject to same-origin policy

Not yet rated
23 users


WYSIWYG Rich text editor for stumbleupon, works on most pages including blog, forum , and contact pages.

Rated 5 out of 5 stars (1)
224 users

su0.ru ShortURL Generator

An extension to generate a short URL using su0.ru in the background of any webpage.

Расширение для создания коротких URL c использованием русскоязычного сервиса su0.ru на фоне любой веб-страницы.

Not yet rated
6 users

Subasa Tamil to Sinhala Transliteration

Tamil To Sinhalese Transliteration provide by Subasa Language Service

Rated 4 out of 5 stars (1)
163 users


Muestra el estado de la red de subtes de Buenos Aires en tiempo real. La informacion es provista por metrovias.

Rated 5 out of 5 stars (2)
66 users

SubITAnime Notifier

SubITAnime Notifier, to be always up-to-date with the anime fansub releases.

Not yet rated
10 users

subMangaH Fix No Restart

Fix error with the image src, changes to img2 when the image does not load.

Rated 5 out of 5 stars (1)
21 users

Submarino Lite

Agora com o Submarino Lite ficou ainda mais fácil encontrar as melhores ofertas da internet. Sempre que você fizer uma busca na internet, os melhores resultados do Submarino serão apresentados para você.
Instale agora e aproveite.

Not yet rated
5 users

Submit 'em now

Blog and RSS Feed Submitter. It already have build in database, so you can submit your blog to 100 blog and rss directories! Full blog directory list is here http://www.submitemnow.com/blog-and-rss-directory-list

Rated 2 out of 5 stars (4)
6 users

Submit to Blogmemes

Submit the current page to Blogmemes (Japanese, Spanish, English, French, Belgium, Chinese) via right-click or the tools menu. There is also an optional button for the toolbar...

Not yet rated
1 user

Submit Word (Romanian)

An extention that allows users to submit words for inclusion in the Romanian dictionary.

Rated 5 out of 5 stars (3)
38 users


Allows you to submit a form to a new tab or window. Simply middle-click on a submit button, or hold down the ctrl key before clicking on the...

Rated 5 out of 5 stars (34)
348 users

Subscribe to feed No Restart

Let Firefox notify you when a new post is published. Even when you're away from this website.

Not yet rated
17 users


The subscriberinfo extension allows testing of mobile sites that use the "subscriberinfo" URI scheme with Firefox...

Rated 5 out of 5 stars (5)
46 users