Web and Developer Tools

Subscribe

Tiny JavaScript Debugger

TinyJSD is a JavaScript debugger for privileged code running Mozilla products like Firefox, Thunderbird, SeaMonkey. It serves to debug the application as well as extensions written in JavaScript.

Rated 4 out of 5 stars (5)
34,290 users
Added March 17, 2013

Click-to-Play Manager No Restart

Manages the Click-to-Play domain whitelist.

Rated 5 out of 5 stars (10)
3,976 users
Added February 12, 2013

IE Tab V2

Ported version of IE Tab V2 (Enhanced IE Tab) that is compatible with SeaMonkey 2. Based on IETab.net work.

Rated 5 out of 5 stars (2)
133 users
Added January 5, 2013

Link Properties Plus

Provides extended link properties: size of linked file, last modified time, etc.

Rated 5 out of 5 stars (13)
1,731 users
Added January 2, 2013

ThaiSEObar

แถบเครื่องมือของ ThaiSeoBar (PR, Dmoz, Google) เป็นเครื่องมือที่อำนวยความสะดวกสำหรับวิเคราะห์ SEO ของข้อมูลในเว็บไซต์อย่างรวดเร็วที่ซึ่งมีจุดประสงค์ให้เว็บมาสเตอร์เป็นผู้ใช้ นอกจากนี้ยังมีคุณสมบัติพิเศษสำหรับผู้ใช้ทั่วไปอีกด้วย
http://thaiseobar.com

Not yet rated
7 users
Added November 7, 2012

Android Debug Bridge For Firefox No Restart

This addon adds some Android Debug Bridge access to Firefox. It requires access to the adb/adb.exe executable from the Android SDK.

Rated 5 out of 5 stars (1)
255 users
Added August 23, 2012

Config Descriptions No Restart

Shows source comments for advanced application preferences in about:config

Rated 5 out of 5 stars (19)
2,444 users
Added August 12, 2012

JavaScript Object Examiner

Display JavaScript object methods and properties for any available scope.

Not yet rated
1,303 users
Added August 9, 2012

printplus

PDF export support by Gecko.
https://github.com/hATrayflood/printplus

Rated 4 out of 5 stars (5)
721 users
Added July 28, 2012

User Agent Changer

Adds a menu and a toolbar button to change the user agent of a browser.

Rated 4 out of 5 stars (6)
3,922 users
Added June 1, 2012

RequestPolicy Sync No Restart

Sync engine for RequestPolicy.

Rated 5 out of 5 stars (3)
1,579 users
Added February 28, 2012

Stylish Sync No Restart

Sync engine for Stylish with backup / restore facility.

Rated 5 out of 5 stars (20)
5,952 users
Added February 24, 2012

Screengrab (fix version)

Screengrab! saves webpages as images.
0.98 released!
New features: upload to internet

Rated 5 out of 5 stars (255)
147,813 users
Added December 29, 2011

Classic Toolbar Buttons No Restart

'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions on Windows.

Beta builds on versions page!

Rated 5 out of 5 stars (144)
40,374 users
Added December 5, 2011

Copy Pure Text

Allows to copy selected text as plain text by adding a 'Copy as Text' menu item to context menu.

Rated 4 out of 5 stars (15)
6,728 users
Added August 21, 2011

foxmeter

An HTTP analyzer addon for Firefox, fork from HttpFox with features like: summary by host, and more coming soon

Rated 5 out of 5 stars (1)
237 users
Added June 9, 2011

SixOrNot No Restart

IP address information for Firefox. SixOrNot is an icon-based display of IPv6 availability and utilisation also providing a listing of domain names and IP addresses involved in loading web pages.

Rated 5 out of 5 stars (12)
3,448 users
Added April 26, 2011

bbeContainer

an extension that allows users to edit local files with browser-based editors.

Not yet rated
16 users
Added March 22, 2011

No More Install Delay No Restart

UPDATE: XPI delay has been removed in Firefox 40!

Disable the install delay in Firefox. New 2.0 version now includes GreaseMonkey scripts!

Unlike similar addons, this works on Firefox 4 and beyond.

Rated 5 out of 5 stars (14)
1,068 users
Added February 22, 2011

DOM Inspector Plus! [dm]

Improved DOM Inspector! [dm version]. Box Model new layout & more data, see screenshot!. Horizontal scroll for Dom-Tree, and some more.
Inspects the structure and properties of a window and its contents.

Rated 5 out of 5 stars (3)
651 users
Added November 14, 2010