SeaMonkey

by Zulkarnain K.

45 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,959 reviews

18,693,673 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 1,845 reviews

1,201,397 users

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

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,635 reviews

2,169,301 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 1,366 reviews

1,347,466 users

Increase your browsing privacy, protection, and speed.

Stylish by userstyles.org

Rated 4 out of 5 stars 863 reviews

430,415 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 268 reviews

315,629 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 260 reviews

432,720 users

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

SQLite Manager by lazierthanthou

Rated 4 out of 5 stars 68 reviews

190,240 users

Manage any SQLite database on your computer.

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 344 reviews

237,298 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 172 reviews

132,971 users

View HTTP headers of a page and while browsing.

QuickNote by Leszek Życzkowski, Jed Brown, others

Rated 5 out of 5 stars 179 reviews

29,072 users

A simple note-taking extension.

HttpFox by Martin Theimer

Rated 4 out of 5 stars 172 reviews

78,974 users

An HTTP analyzer addon for Firefox

Image Zoom by Jason Adams

Rated 4 out of 5 stars 347 reviews

132,013 users

Adds zoom and rotation functionality for images...

JavaScript Deobfuscator by Wladimir Palant

Rated 5 out of 5 stars 20 reviews

45,720 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 245 reviews

65,987 users

Adds private tabs.
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