Artem's Useful Add-ons

by Archon810

50 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,979 reviews

21,264,596 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).

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,793 reviews

2,211,735 users

Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 958 reviews

1,261,584 users

Customize the way a web page displays or behaves, by using small bits of JavaScript.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 251 reviews

366,626 users

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

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,544 reviews

913,179 users

Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager.

Web Developer by chrispederick

Rated 5 out of 5 stars 217 reviews

557,677 users

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

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 305 reviews

296,008 users

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

Flagfox by Dave G

Rated 5 out of 5 stars 635 reviews

606,043 users

Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...

IE Tab V2 (Enhanced IE Tab) by

Rated 4 out of 5 stars 417 reviews

556,071 users

Note: If you are encountering the Connecting... problem see instructions below.

The updated, fully supported IE Tab. Embed IE in a Firefox tab. IE Tab Features: FF 4+ support, IE 7-9 compatibility modes, old IE Tab settings import.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 339 reviews

153,702 users

Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

ColorfulTabs by Shivanand Sharma

Rated 4 out of 5 stars 991 reviews

226,626 users

The most beautiful yet the simplest add-on that makes a strong colorful appeal. Colors every tab in a different color and makes them easy to distinguish while beautifying the overall appearance of the interface. For Seamonkey & Flock. An essential. F...

JavaScript Deobfuscator by Wladimir Palant

Rated 5 out of 5 stars 20 reviews

56,781 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.

Tree Style Tab by Piro (piro_or)

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Rated 4 out of 5 stars 1,221 reviews

101,367 users

Show tabs like a tree.

JSONView by Ben Hollis

Rated 5 out of 5 stars 133 reviews

97,946 users

View JSON documents in the browser.

YSlow by YSlow

Rated 3 out of 5 stars 195 reviews

98,243 users

YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages. is the official open source website.
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