SeaMonkey

by Zulkarnain K.

43 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 5,147 reviews

17,485,158 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).

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 4 out of 5 stars 1,756 reviews

1,171,980 users

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

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,559 reviews

2,313,895 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.

Ghostery by Ghostery

Rated 5 out of 5 stars 1,376 reviews

1,271,448 users

Increase your browsing privacy, protection, and speed.

Stylish by userstyles.org

Rated 4 out of 5 stars 817 reviews

420,076 users

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Tumblr, and many, many other sites. You can even customize Firefox and other programs themselves.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 271 reviews

333,097 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 72 reviews

189,619 users

Manage any SQLite database on your computer.

Web Developer by chrispederick

Rated 5 out of 5 stars 262 reviews

415,647 users

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

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 376 reviews

227,572 users

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

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 168 reviews

127,868 users

View HTTP headers of a page and while browsing.

QuickNote by Leszek Życzkowski, Jed Brown, others

Rated 5 out of 5 stars 168 reviews

29,235 users

A simple note-taking extension.

HttpFox by Martin Theimer

Rated 4 out of 5 stars 171 reviews

77,437 users

An HTTP analyzer addon for Firefox

Image Zoom by Jason Adams

Rated 4 out of 5 stars 339 reviews

125,874 users

Adds zoom and rotation functionality for images...

JavaScript Deobfuscator by Wladimir Palant

Rated 5 out of 5 stars 21 reviews

48,126 users

This add-on shows you what JavaScript code runs on a web page, even if it is obfuscated and generated on the fly. Simply open JavaScript Deobfuscator from the Web Developer menu and watch the scripts being compiled/executed.

Private Tab by Infocatcher

Rated 5 out of 5 stars 237 reviews

65,236 users

Adds private tabs.
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