Welcome to SeaMonkey Add-ons.
Add extra features and styles to make SeaMonkey your own.Close
Recently Updated Extensions
YouTube Flash Video Player No Restart
YouTube Flash Video Player is a powerful tool that will let you choose Flash video player as default YouTube video player.
Facebook Toolbar Button No Restart
Facebook Toolbar Button lets you visit your Favorite Facebook quickly and easily by adding a special Facebook Button to your Toolbar.
Element Hiding Helper for Adblock Plus No Restart
Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.
Adblock Plus No Restart Featured
Blocks annoying video ads on YouTube, Facebook ads, banners and much more.
Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
DSLR Notifier 2 No Restart
Updated version of the original DSLR Notifier, created by Ryan Flint, which enables members of Dsl/Broadbandreports.com to keep tabs on their instant messages and updated...
BBCodeXtra is an extension, compatible with Mozilla FireFox and Seamonkey, which adds to the context menu new commands to insert BBCode/Html/XHtml codes in an easy and fast way...
Screengrab! saves webpages as images.
New features: upload to internet
NoScript Security Suite Featured
The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.
Single Key Tab Switch provides configurable single hotkeys for switching tabs, like the 'Single-key shortcuts' feature of the Opera browser.
Share Button for Pinterest No Restart
Send images and pages to your Pinterest account quickly and easily with Share Button for Pinterest.
Redirect Bypasser No Restart
Avoid redirects and has direct access to the sites you want to visit.
Pan No Restart
Block ads and manage proxy.
Quickly generate mail filters on the fly, by dragging and dropping mails and analyzing their attributes. Create a filter in less than 10 seconds, it's as easy as: drag, click, click.
By popular demand, supports SORTING filters alphabetically.
An easier management of the user interface language
uBlock Origin No Restart
Finally, an efficient blocker. Easy on CPU and memory.
Open With Vivaldi Browser No Restart
Open With Vivaldi Browser sends pages from Mozilla Firefox to Vivaldi browser.
GNotifier No Restart
Add-on for Firefox and Thunderbird. Integrates Firefox's notifications with the OS's native notification system. It supports most Linux desktops and Windows 8.
Protection from adult content (parental control) and from dangerous sites.
Entrust protection for yourself and your children to professionals!
S3.Google Translator adds the power of Google Translate’s automatic translations to your browser!
It supports translation of selected text, entered phrase or whole webpage between any of 80+ languages.
New Feature: Language learning!