by Zulkarnain K.

25 Add-ons in this Collection

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 1,012 reviews

1,243,533 users

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

iMacros for Firefox by Ipswitch

Rated 4 out of 5 stars 427 reviews

458,156 users

Automate Firefox. Record and replay repetitive tasks. If you're tired of manually visiting the same sites, filling out forms, downloading files and extracting data, then iMacros is for you! Save time, effort and money with iMacros browser automation!

JavaScript Debugger by James Ross, Robert Ginda, others

Rated 4 out of 5 stars 49 reviews

113,113 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 20 reviews

50,569 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 119 reviews

61,401 users

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

PrefBar by Manuel Reimer

Rated 5 out of 5 stars 39 reviews

15,569 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.

JSONovich by mjgiarlo, Will Elwood

Rated 4 out of 5 stars 36 reviews

9,159 users

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

Custom Buttons by Yan, cubegm, others

Rated 4 out of 5 stars 113 reviews

63,203 users

Gives a possibility to create custom toolbarbuttons...

Execute JS by Rudolf Noe

Rated 5 out of 5 stars 13 reviews

5,074 users

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

JavaScript Terminal by Paul Rouget

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Rated 4 out of 5 stars 5 reviews

2,446 users

JavaScript Terminal for Firefox.

Developer Assistant by Ted Mielczarek, Gavin Sharp, others

Rated 4 out of 5 stars 46 reviews

2,717 users

A suite of tools for developers.

uc by matyr

Rated 5 out of 5 stars 21 reviews

1,331 users

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

JSON Inspector by Zulkarnain K.

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Not yet rated

359 users

Inspect JSON object from a URL or entered data.
Requires either DOM Inspector or DOM Inspector Plus! [dm] extension.

Ubiquity by matyr

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Rated 5 out of 5 stars 127 reviews

1,278 users

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

dotjs by Ricky Rosario

dotjs is a Firefox Add-on that executes JavaScript files in `~/.js` based on their filename and the domain of the site you are visiting.
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