Tategaki Requires Restart
Tategaki allows vertical writing-mode on mail compose window.
All the great features of /u/RemindMeBot in a quick and easy to use extension!
Send Later Button Requires Restart
A simple button to invoke the (already existing) send later functions.
View HTTP headers of a page and while browsing.
This is an unofficial "Live HTTP headers" clone, mainly to fix the Replay feature!
Un bloqueur de publicité équitable. Préservez le web gratuit en choisissant sur quels sites vous bloquez la publicité.
Adds a new page that shows add-on memory usage
한국 웹의 광고를 효율적으로 차단합니다.
Rewrite http response body using search & replace patterns
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.
Restart Application Button lets you restart your Firefox and SeaMonkey application by a quick toolbar button click.
Restrict Proxy by Private Windows, Tabs and Domain List
Prevent accidental interaction with tab contents
XDM Helper2 Requires Restart
XDM integration module2
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.
GNOMErunner Options Requires Restart
Allows to customize GNOMErunner theme
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
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.
Automatically installs a set of domains to the Remote XUL whitelist.
Stylish-Custom Requires Restart
custom additions to Stylish extension
No need flash plugin on embeded youtube movies