SeaMonkey

by Zulkarnain K.

42 Add-ons in this Collection

Adblock Plus by Eyeo

Rated 5 out of 5 stars 7,293 reviews

12,277,656 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 – Privacy Ad Blocker by Ghostery

Rated 5 out of 5 stars 2,171 reviews

1,023,488 users

Ghostery is a powerful privacy extension.

Block ads, stop trackers and speed up websites.

NoScript Security Suite by Giorgio Maone

Rated 4 out of 5 stars 2,600 reviews

1,507,018 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, "Spectre", "Meltdown" and other JavaScript exploits.
Fx52? https://noscript.net/getit

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 4 out of 5 stars 2,748 reviews

665,986 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 1,281 reviews

319,563 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 474 reviews

263,182 users

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

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 430 reviews

176,554 users

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

SQLite Manager by lazierthanthou

Rated 4 out of 5 stars 313 reviews

106,785 users

Manage any SQLite database on your computer.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 320 reviews

152,276 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 202 reviews

16,912 users

A simple note-taking extension.

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 214 reviews

69,771 users

View HTTP headers of a page and while browsing.

HttpFox by Martin Theimer

Rated 4 out of 5 stars 205 reviews

38,553 users

An HTTP analyzer addon for Firefox

Image Zoom by Jason Adams

Rated 4 out of 5 stars 353 reviews

69,178 users

Adds zoom and rotation functionality for images...

Saved Password Editor by Daniel Dawson

Rated 5 out of 5 stars 384 reviews

59,482 users

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

RefControl by James Abbatiello

Rated 4 out of 5 stars 180 reviews

49,809 users

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