I recently looked up information about the Raptr client because I had read that it used XULRunner. When I went to download it though, the app was clearly marked as being built with Adobe AIR. I talked to someone at Raptr and it turns out they had used XULRunner but switched because it wasn’t meeting their needs.
This got me thinking about other applications that used to use Mozilla technologies so I set up a list to help track things. If you know of anything that’s missing, feel free to edit the wiki page or post here.
It could be interesting to contact people involved with these applications (as well as current users of Mozilla technologies) to get their thoughts and suggestions about how we might improve things.