SeaMonkey

by Zulkarnain K.

45 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,819 reviews

19,715,323 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 1,754 reviews

1,251,521 users

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

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,580 reviews

2,075,425 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 1,263 reviews

1,419,668 users

Increase your browsing privacy, protection, and speed.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 263 reviews

334,728 users

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

Web Developer by chrispederick

Rated 5 out of 5 stars 235 reviews

471,833 users

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

SQLite Manager by lazierthanthou

Rated 5 out of 5 stars 51 reviews

193,492 users

Manage any SQLite database on your computer.

Stylish by Jason Barnabe

Rated 4 out of 5 stars 817 reviews

459,466 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.

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 309 reviews

261,949 users

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

JavaScript Deobfuscator by Wladimir Palant

Rated 5 out of 5 stars 20 reviews

52,328 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.

HttpFox by Martin Theimer

Rated 4 out of 5 stars 168 reviews

85,678 users

An HTTP analyzer addon for Firefox

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 168 reviews

147,599 users

View HTTP headers of a page and while browsing.

QuickNote by Leszek Życzkowski, Jed Brown, others

Rated 5 out of 5 stars 172 reviews

26,925 users

A simple note-taking extension.

Image Zoom by Jason Adams

Rated 4 out of 5 stars 340 reviews

145,871 users

Adds zoom and rotation functionality for images...

RefControl by James Abbatiello

Rated 4 out of 5 stars 183 reviews

80,956 users

Control what gets sent as the HTTP Referer on a per-site basis.
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