Extensions by Name

Subscribe

Skype Web Messenger

Skype Web Messenger brings Skype right into your browser to make audio and video calls.

Rated 5 out of 5 stars (3)
4,592 users

Slashy Requires Restart

Fixes Windows backslash file separators in links and images and other types.

Rated 4 out of 5 stars (5)
297 users

Slim Add-ons Manager

The Add-ons Manager slims down!
This add-on reduces the height of entries in the Add-on Manager, so you can display more of them at a time.

Rated 5 out of 5 stars (51)
6,244 users

SM Home Button Requires Restart

Navigation bar Home Button (resurrected by sailfish)

Not yet rated
23 users

SmartTemplate4 Requires Restart

SmartTemplate4 offers an easy way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every account as well as for the default (all email accounts). Also supports the Stationery Add-on.

Rated 5 out of 5 stars (50)
16,244 users

smftn Requires Restart

download directly from QQ file transportation over 7/200 times limit

Rated 5 out of 5 stars (6)
39 users

Smiley Fixer Requires Restart

Fixes Wingding Smileys in Outlook-generated emails

Rated 5 out of 5 stars (18)
5,075 users

Snic

Smart Near-Infrared Control.

Not yet rated
0 users

Soapy Requires Restart

Bypasses DNS-based censorship

NOTE: This was created as a SOPA protest in 2012. This does not work anymore for most sites. Use Tor instead.

Not yet rated
18 users

SolusVM VPS Monitor Requires Restart

Status Monitor for SolusVM-backed VPS.

Not yet rated
21 users

Sort and Search Customization Dialogs Requires Restart

Sort and search for buttons in (any) toolbar customization dialog

Rated 5 out of 5 stars (16)
427 users

SourceEditor Requires Restart

View and Edit source of HTML element...

Rated 4 out of 5 stars (19)
962 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)
1,495 users

Spanish (Spain) ChatZilla Requires Restart

Spanish (es-ES) Language Pack for ChatZilla

Rated 5 out of 5 stars (7)
761 users

Speed Dial Requires Restart

Direct access to your most visited websites

Rated 4 out of 5 stars (1,246)
220,151 users

Speed Start

Speed Dial & Start Page with flexible layout for fast access to sites via visual bookmarks

Rated 5 out of 5 stars (58)
6,179 users

SQL Cardfile Requires Restart

A simple card file database using SQLite as the backend.

Not yet rated
15 users

SQLite Manager Requires Restart

Manage any SQLite database on your computer.

Rated 4 out of 5 stars (83)
143,362 users

Standalone SeaMonkey Mail

Use SeaMonkey as a standalone e-mail client. Set up a default browser for links opened from Mail & Newsgroups.

Rated 5 out of 5 stars (5)
76 users

Stop Tube HTML5

Stops autoplay of YouTube HTML5 videos (WebM). It is Flash-Block equivalent for HTML5 videos.

Rated 3 out of 5 stars (62)
2,485 users