50
Mozilla
21,649
Open source
Browse the Internet and test your latest website and web applications.
Blumentals Software
50
Shareware
Rapid CSS Editor is designed to save you time and make your job easier.
5
Blumentals Software
583
Freeware
Free CSS Toolbox is a program to create, edit, verify your CSS codes.
Leo Vildosola
39
Freeware
A plugin to help format and apply syntax highlighting to source code.
2
WiseCleaner.com, Inc.
1,709
Freeware
Manage your plug-ins and browser extensions in an easy and effective way.
1
Nicolas Huon.
10
Freeware
CSS Viewer is an easy to use yet very useful Firefox add-on for web developers.
1
Trend Micro
Freeware
The program is a Firefox plugin that warns you against malicious websites.
6
ExitReality
356
Freeware
ExitReality is a free browser plugin that is compatible with Internet Explorer or Firefox.
Virginia Tech
32
Freeware
LibX is a browser plugin for Firefox and Internet Explorer.
45
Organic Desktop
3
Freeware
Firefox plugin that displays local documents that match browsed web pages.
5
Sweet Plugins
17
Freeware
Dislike Button for Facebook is a freeware plugin for Mozilla firefox.
Zscaler, Inc.
4
Freeware
BlackSheep, a Firefox plugin, is designed to combat Firesheep.
1
Oliver Goquel
108
Freeware
This tool can be used as a plugin for Firefox to run Apple II and Apple IIGS.
