I've been trying to narrow this down and I think it only happens when I have a poor wireless internet connection - as though it's not loading pages fully or losing data somewhere.
I've enclosed a screenshot of it happening again - with Firefox asking me if I want to open a php script with text editor. It's random and pretty hard to replicate :( -- Firefox tries to open URLs ending in .dll with wine https://launchpad.net/bugs/55825 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
