SeaMonkey

by Zulkarnain K.

43 Add-ons in this Collection

Adblock Plus by Wladimir Palant, Eyeo

Rated 5 out of 5 stars 6,272 reviews

13,854,336 users

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).

Ghostery by Ghostery

Rated 4 out of 5 stars 1,807 reviews

1,010,230 users

Increase your browsing privacy, protection, and speed.

NoScript Security Suite by Giorgio Maone

Rated 4 out of 5 stars 2,066 reviews

1,704,802 users

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.

Stylish - Custom themes for any website by userstyles.org

Rated 4 out of 5 stars 1,118 reviews

346,102 users

Stylish lets you customize any website with custom user styles (themes for websites). Choose from the largest userstyles library to change the color scheme, background, and skin for Google, Facebook, YouTube and many, many more sites.

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 4 out of 5 stars 2,172 reviews

895,080 users

The first and only download manager/accelerator built inside Firefox!

Web Developer by chrispederick

Rated 4 out of 5 stars 361 reviews

273,660 users

The Web Developer extension adds various web developer tools to the browser.

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 391 reviews

162,031 users

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 287 reviews

200,613 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

SQLite Manager by lazierthanthou

Rated 4 out of 5 stars 128 reviews

134,287 users

Manage any SQLite database on your computer.

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 188 reviews

79,046 users

View HTTP headers of a page and while browsing.

QuickNote by Leszek Życzkowski, Jed Brown, others

Rated 5 out of 5 stars 190 reviews

21,209 users

A simple note-taking extension.

HttpFox by Martin Theimer

Rated 4 out of 5 stars 176 reviews

48,738 users

An HTTP analyzer addon for Firefox

Saved Password Editor by Daniel Dawson

Rated 5 out of 5 stars 333 reviews

72,365 users

Adds the ability to create and edit entries in the password manager.

JSONovich by Will Elwood, mjgiarlo

Rated 4 out of 5 stars 44 reviews

4,423 users

Pretty-prints JSON content in the browser for easy, unobtrusive viewing.

Private Tab by Infocatcher

Rated 5 out of 5 stars 287 reviews

45,093 users

Adds private tabs.
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