by Zulkarnain K.

25 Add-ons in this Collection

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 964 reviews

1,363,522 users

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

iMacros for Firefox by iMacros

Rated 4 out of 5 stars 381 reviews

405,031 users

Automate Firefox. Record and replay repetitious work. If you love the Firefox web browser, but are tired of repetitive tasks like visiting the same sites every days, filling out forms, and remembering passwords, then iMacros for Firefox is the soluti...

JavaScript Debugger by James Ross, Robert Ginda, others

Rated 4 out of 5 stars 50 reviews

151,333 users

As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.

Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aimed to provide a powerful JavaScript debugging environment for Mozilla based browsers.

JavaScript Deobfuscator by Wladimir Palant

Rated 5 out of 5 stars 19 reviews

67,781 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.

Scriptish by Erik Vold, Nils Maier, others

Rated 4 out of 5 stars 113 reviews

79,822 users

The greatest user script engine on the Internet (a fork of Greasemonkey).

JSONovich by mjgiarlo, Will Elwood

Rated 4 out of 5 stars 33 reviews

11,088 users

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

Custom Buttons by Yan, cubegm, others

Rated 4 out of 5 stars 90 reviews

91,057 users

Gives a possibility to create custom toolbarbuttons...

PrefBar by Manuel Reimer

Rated 5 out of 5 stars 40 reviews

17,659 users

The all in one toolbar(item). Houses and manages bigger amounts of buttons (Clear Cache, Clear Cookies, ...), Menus (User Agent spoof...) and checkboxes (Javascript, Flash, ...). Extensible from online-database or with self created buttons.

Execute JS by Rudolf Noe

Rated 5 out of 5 stars 13 reviews

6,346 users

Execute JS is a enhanced JavaScript-Console, where you can comfortably enter and execute arbitrary JavaScript-Code and modify functions...

Developer Assistant by Ted Mielczarek, Gavin Sharp, others

Rated 4 out of 5 stars 46 reviews

3,537 users

A suite of tools for developers.

JavaScript Terminal by Paul Rouget

Download Now


Rated 4 out of 5 stars 5 reviews

3,643 users

JavaScript Terminal for Firefox.

uc by matyr

Rated 5 out of 5 stars 18 reviews

1,291 users

A userChromeJS clone with built-in subscript/overlay loader capability.

JavaScript Object Examiner by Chuck_Baker

Download Now


Not yet rated

1,314 users

Display JavaScript object methods and properties for any available scope.

Ubiquity by matyr

Download Now


Rated 5 out of 5 stars 122 reviews

1,416 users

An extension that allows for the use of dynamic commands in Firefox.

Javascript Command by max1million

Download Now


Rated 4 out of 5 stars 13 reviews

2,200 users

For writing/testing javascript on Firefox windows (extension development, etc), web pages, and bookmarklets.
  1. 1
  2. 2
Results 115 of 25

What are Collections?

Collections are groups of related add-ons that anyone can create and share.

Explore Collections

More by this User

See all collections by this user

Recently Viewed