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Tategaki Requires Restart

Tategaki allows vertical writing-mode on mail compose window.

Not yet rated
29 users
Added May 16, 2016

RemindMeBot-Reddit Compatible with Firefox 57+

All the great features of /u/RemindMeBot in a quick and easy to use extension!

Rated 2 out of 5 stars (3)
123 users
Added May 11, 2016

Send Later Button Requires Restart

A simple button to invoke the (already existing) send later functions.

Rated 5 out of 5 stars (1)
4,181 users
Added April 28, 2016

Live HTTP Headers (clone)

View HTTP headers of a page and while browsing.

This is an unofficial "Live HTTP headers" clone, mainly to fix the Replay feature!

Rated 4 out of 5 stars (14)
6,634 users
Added April 14, 2016

fairBlock

Un bloqueur de publicité équitable. Préservez le web gratuit en choisissant sur quels sites vous bloquez la publicité.

Rated 3 out of 5 stars (3)
180 users
Added April 7, 2016

about:addons-memory 2016

Adds a new page that shows add-on memory usage

Rated 5 out of 5 stars (38)
8,246 users
Added April 5, 2016

Native AdBlocker

한국 웹의 광고를 효율적으로 차단합니다.

Rated 5 out of 5 stars (9)
211 users
Added March 20, 2016

Modify HTTP Response

Rewrite http response body using search & replace patterns

Rated 4 out of 5 stars (6)
859 users
Added March 15, 2016

AMO Browsing for SeaMonkey

This extension makes browsing for extensions easier at addons.mozilla.org. It fixes incorrect information about some extensions being not available for SeaMonkey and adds links to the Add-on Converter where needed.

Rated 5 out of 5 stars (4)
139 users
Added March 13, 2016

Restart Application Button

Restart Application Button lets you restart your Firefox and SeaMonkey application by a quick toolbar button click.

Rated 5 out of 5 stars (2)
757 users
Added March 10, 2016

Proxy Privacy Ruler

Restrict Proxy by Private Windows, Tabs and Domain List

Rated 5 out of 5 stars (26)
5,253 users
Added March 2, 2016

ClickGuard

Prevent accidental interaction with tab contents

Rated 5 out of 5 stars (1)
46 users
Added Feb. 27, 2016

XDM Helper2 Requires Restart

XDM integration module2

Not yet rated
57 users
Added Feb. 23, 2016

GNotifier

Add-on for Thunderbird that replaces the built-in notifications with OS native ones. It supports most Linux Desktop Environments as well as Windows 8.1/10.

Rated 5 out of 5 stars (42)
10,581 users
Added Feb. 14, 2016

GNOMErunner Options Requires Restart

Allows to customize GNOMErunner theme

Not yet rated
908 users
Added Feb. 12, 2016

Sensitivity Header + SPX Requires Restart

Implement the "Sensitivity" header for outgoing messages (described in RFC 4021 section 2.1.55).
Forked from another add-on developed by ff_bob, added SPX header for Sophos security appliances

Not yet rated
10 users
Added Feb. 6, 2016

RequestPolicy Continued

Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.

Rated 4 out of 5 stars (17)
6,773 users
Added Feb. 2, 2016

BrightSide XUL Installer

Automatically installs a set of domains to the Remote XUL whitelist.

Not yet rated
1 user
Added Jan. 27, 2016

Stylish-Custom Requires Restart

custom additions to Stylish extension

Rated 5 out of 5 stars (8)
922 users
Added Jan. 12, 2016

No need flash plugin on embeded youtube movies

No need flash plugin on embeded youtube movies

Rated 4 out of 5 stars (25)
3,615 users
Added Jan. 1, 2016