Thank you for your bug report. This is actually not a bug in nautilus, but in the respective application (in your case, apparently Adobe Photoshop). Applications that are shown several times are registered several times for the respective file type, nautilus is simply displaying all registered applications.
** Changed in: nautilus (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to nautilus in ubuntu. https://bugs.launchpad.net/bugs/685460 Title: "Open with..." dialog lists many times the same applications -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs