@Pedro, I am reopening this as a bug, something is wrong when having Flash can intercepta standard OS file dialog.
I can confirm this same problem in Maverick using the latest Adobe Flash for 64-bit. This seems to be website-specific. Try to upload an image to Flickr with Flash enabled - no preview. Try to upload an image to your Launchpad profile with Flash enabled - preview is OK. It looks like websites can override the OS upload dialog with their own or something along those lines. ** Changed in: nautilus (Ubuntu) Status: Invalid => Confirmed ** Changed in: nautilus (Ubuntu) Importance: Undecided => Medium ** Also affects: nautilus Importance: Undecided Status: New ** Also affects: ubuntu-release-notes Importance: Undecided Status: New -- No preview on file upload after installing Flash https://bugs.launchpad.net/bugs/613886 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs