Developer Profile - Firefox Addon - This Firefox addon will automatically alter your profile into a development environment, as described at the "Setting up an extension development environment" page. Note that the addon thereby actively sets your profile settings for you
JSONovich - Firefox Addon is a Firefox extension that pretty-prints JSON content of various types directly in a browser tab. It uses the browser's native JSON parser and a custom-built formatter to produce its output.
Normally, Firefox would prompt to download JSON sent with the correct application/json mime-type
Mobile Tools - Tools for working with web pages in Firefox Mobile. Use tools like Page Info to view details about the current web page or use Page Source to view the actual web page source. A Firebug Console API is also supported for helping to debug web pages on mobile devices
Fire j2meSymbian OS, Pocket PC, Palm, Series 60, Series 80, Series 90, UIQ, BlackBerry, Sharp Zaurus, Linux, Smartphone, MaemoVersion: 1.0 Upload date: 5 Jul 11 Tags: Programming & Development
Freeware
Fire j2me is a library that aims to provide a set of easy-to-use extendable components to J2ME developers.
The basic set of Fire components offer all the functionality of the J2ME GUI components provided in the midp2 profile (Forms, Items etc.) plus a much more appealing user interface, themes, animations, popup menus, and better component layout
Add-on Compatibility Reporter - Help Mozilla make sure your favorite add-ons get updated for upcoming Firefox releases by using this extension to report whether they still work or are having some issues with alpha and beta releases
Where Am O? A helpful extension for AMO developers.
The only functionality right now is to clearly identify what AMO server you are on and let you switch between that page on others.
Add your own dev server by going to about:config and creating the pref extensions.whereamo
Console² - Firefox Addon is the JavaScript Console is used not only for JavaScript errors, but for CSS errors as well. This extension takes this into account by providing a simple possibility to display errors by type.
Console² lets you display errors filtered by type (Errors, Warnings, Messages), language (JavaScript, CSS, XML) and context (Chrome, Content)
Gomodo - Firefox Addon - Search engine for web developers. Look in the reference sites and official documentation. (HTML / CSS, PHP, Javascript, jquery, prototype ...). You can optimize your search by choosing the type of language
