The latest Firefox 3.6 Beta 1 nightlies now feature a new about:support page that lists important information about your Firefox installation that will help support people help with problems you may have in the future.
Implemented as one of the private about: pages. Enter about:support in the location bar, hit Enter, and you will get a simple web page that includes details like your current profile location, exact Firefox version, links to plugins and build configuration details (about:plugins and about:buildconfig), a list of all your current extensions, and all modified preferences which could signal some incompatibility or forgotten customization.
A single button allows you to copy all the information to the clipboard and then paste it into a support forum or chat window, providing the guy in the other end a good idea of what’s going on.
There’s still a debate on whether the profile folder should be shown or not. As you may know, the profile folder name is randomly named, adding another level of protection from remote access attacks.
This is a big leap for Firefox support not only for SUMO (Mozilla Support), but for everyone who has spent some time helping a friend or relative troubleshoot some Firefox problem.