I have exactly the same problem. It is not only firefox, chrome does the same. It must be flash. I use 10.04. Any fix that solves it forever, instead of renaming all the time?
-- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gtk+2.0 in ubuntu. https://bugs.launchpad.net/bugs/221409 Title: Ubuntu Browse Multiple Files dialog does not recognize capital / uppercase JPG as image -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs