Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
- Any Firefox
- Firefox 44.0
- Firefox 43.0
- Firefox 42.0
- Firefox 41.0
- Firefox 39.0
- Firefox 35.0
- Firefox 34.0
- Firefox 26.0
51 matching results
Search Results for tag "developer"
Octotree No Restart
Add-on to display GitHub code in tree format
Quicker access to several Stylish features through a toolbar button and/or keyboard shortcuts. Available for Firefox, Thunderbird, and SeaMonkey
Disable Add-on Compatibility Checks No Restart
Reinstates the extensions.checkCompatibility preference without respect to the current application version.
HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon
For Online HTML 5 validation, you need 0.962
Access and activate the native Firefox Web Developer tools faster through this toolbar button (menu). Button can be placed on any toolbar.
Clear Cache was developed to make it easier for Web development, clearing your browser cache (RAM and DISK) by pressing a button or via the F9 key.
F9 Fever! ;)
Display Country Flag indicating Website Physical Location (Country, State, City). Website Popularity (Live Visitor Statistics). Shows how many users are visiting any World Website per day. Website IP IPv6 Addresses, DNS, Hosting. IP Whois Lookup
Web Developer Featured
The Web Developer extension adds various web developer tools to the browser.
DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.
Toggle Web Developer Toolbar has been specially designed for web developers to provide easy to use methods to toggle Web Developer toolbar so that they can preserve their browser view area when they do not use Web Developer toolbar.
Firecookie is an extension for Firebug that makes possible to view and manage cookies in your browser
Firecookie is part of Firebug since Firebug 1.10
This plugin helps debugging .scss files generated by compass. It shows the original .scss filename and line number when hovering the <filename>:<line number> link in the CSS panel.
(Formerly Local Install) The primary goal of this extension is to provide the tools needed to install and manage extensions and themes locally and tons of other features.
Note: With Toolkit 6.0 Auto Archiving is fully working in Firefox 2.0 and temp...
Flagfox No Restart
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...
FireQuery No Restart
Firebug plugin for jQuery development
Good Website Inspector is an extended ruleset for YSLOW, a Firefox AddOn, to check source codes of HTML pages to get easy and fast hints to optimize the current page.
Simple color picker plugin for Firebug.