SeaMonkey

by Zulkarnain K.

43 Add-ons in this Collection

Adblock Plus by Wladimir Palant, Eyeo

Rated 5 out of 5 stars 6,430 reviews

14,163,467 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 1,883 reviews

1,079,231 users

See who’s tracking you online and protect your privacy with Ghostery.

NoScript Security Suite by Giorgio Maone

Rated 4 out of 5 stars 2,392 reviews

1,620,138 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.

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 4 out of 5 stars 2,345 reviews

875,833 users

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

Stylish - Custom themes for any website by userstyles.org

Rated 4 out of 5 stars 1,151 reviews

377,580 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.

Web Developer by chrispederick

Rated 4 out of 5 stars 400 reviews

305,603 users

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

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 400 reviews

186,338 users

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

SQLite Manager by lazierthanthou

Rated 4 out of 5 stars 170 reviews

140,266 users

Manage any SQLite database on your computer.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 293 reviews

199,733 users

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

QuickNote by Leszek Życzkowski, Jed Brown, others

Rated 5 out of 5 stars 193 reviews

22,072 users

A simple note-taking extension.

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 191 reviews

84,602 users

View HTTP headers of a page and while browsing.

HttpFox by Martin Theimer

Rated 4 out of 5 stars 180 reviews

52,615 users

An HTTP analyzer addon for Firefox

Saved Password Editor by Daniel Dawson

Rated 5 out of 5 stars 352 reviews

73,268 users

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

Image Zoom by Jason Adams

Rated 4 out of 5 stars 353 reviews

86,415 users

Adds zoom and rotation functionality for images...

JSONovich by Will Elwood, mjgiarlo

Rated 4 out of 5 stars 44 reviews

5,589 users

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