Welcome to SeaMonkey Add-ons.
Add extra features and styles to make SeaMonkey your own.Close
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
RequestPolicy Continued No Restart
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.
BrightSide XUL Installer No Restart
Automatically installs a set of domains to the Remote XUL whitelist.
custom additions to Stylish extension
This is a dictionary file add-on for the Rikaichan extension.
ZeroWasteFrance base docu No Restart
Quickly add a document to the ZeroWaste documentation base.
Xtreme Download Manager integration module to take over downloads and streaming videos from Firefox
Flash player plugin - unofficial xpi repack for 32bit browsers.
Use when official plugin installer is not suitable.
All binary files are copyrighted by their authors and distributed for free.
AntiGameOrigin v6 No Restart
AntiGameOrigin - the other OGame experience for all communities.
This is a fork of AutoProxy, which can run the latest version of Firefox.
Diagnostics for Adblock Plus No Restart
Diagnostics tool for Adblock Plus, provides some insight into internal processes of Adblock Plus.
Firefox Integration for DownloadStudio
Youtube Downloader Gold No Restart
This extension to download audio and video from popular video hosting YouTube. To download the available formats mp4, webm, mp4a, mp3.
WhatsApp Web Messenger No Restart
Whatsapp Web Messenger brings WhatsApp right into your browser to chat with your friends.
Open With Vivaldi Browser No Restart
Open With Vivaldi Browser sends pages from Mozilla Firefox to Vivaldi browser.
Tab Reopener No Restart
Reopens the last closed tab.
Wisp Wishlists No Restart
Use the Wisp plugin to create Wishlists by Adding products from your favorite online shops. Share wishlists with your friends and family, or use the system to find gifts
Last Dictionary for Mail No Restart
This extension will remember the last dictionary used in the Mail Compose window and use it when composing new messages.
Send images to your MintShow account quickly and easily with MintIt Button for MintShow.