That seems like to be bug #882900 ("Some handlers don't get listed in the "open with" tab") which seems a gtk issue and has been sent to https://bugzilla.gnome.org/show_bug.cgi?id=665116
That seems like to be bug #882900 ("Some handlers don't get listed in the "open with" tab") which seems a gtk issue and has been sent to https:/ /bugzilla. gnome.org/ show_bug. cgi?id= 665116