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
PyGTKEditor is a text editor with a small screen footprint, fast syntax highlight based on GtkSourceView, fullscreen capable, regulars expressions search and many more other things specially designed for onboard developers. PyGTKEditor was mainly an editor for python developer, but it is now open to all other language like c/c++, ruby, java, php and many more
Who Is Hosting This.com is a popular webmaster tool that lets you discover who is hosting any web site, as well as publishing hosting reviews, our blog & more. The search plugin lets you query the site from your Firefox browser.
The tool provides a profile of the hosting company in question (where applicable), IP address and DNS information
Search C functions in c.conclase.net. This search engine only searches functions within the programming language C, so that returns a Spanish page with the syntax, examples, library to which it belongs, so that function. If there is the desired function will return an error page