This was an intentional change done by upstream Nautilus developers. Showing a dialog by default makes problems for users that have external drives with FAT32-like filesystem, where all files are executable. See:
https://git.gnome.org/browse/nautilus/commit/?id=72d6c7ce7febd573 https://bugzilla.gnome.org/show_bug.cgi?id=601736 Like Borivoje said, it is easily configurable from the Preferences dialog. ** Bug watch added: GNOME Bug Tracker #601736 https://bugzilla.gnome.org/show_bug.cgi?id=601736 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nautilus in Ubuntu. https://bugs.launchpad.net/bugs/1111397 Title: Executable files do not launch in 13.04 Status in “nautilus” package in Ubuntu: Confirmed Bug description: If I make a text file executable - I can launch it in 12.10, or 12.04 . But in 13.04 it is just opening in gedit . I need to use terminal to launch it. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: nautilus 1:3.6.3-0ubuntu5 ProcVersionSignature: Ubuntu 3.8.0-2.6-generic 3.8.0-rc4 Uname: Linux 3.8.0-2-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.8-0ubuntu3 Architecture: amd64 Date: Thu Jan 31 14:05:23 2013 GsettingsChanges: b'org.gnome.nautilus.window-state' b'geometry' b"'800x550+261+167'" b'org.gnome.nautilus.window-state' b'maximized' b'true' InstallationDate: Installed on 2013-01-28 (2 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MarkForUpload: True ProcEnviron: LANGUAGE=ru_UA:ru PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=ru_UA.UTF-8 SHELL=/bin/bash SourcePackage: nautilus UpgradeStatus: Upgraded to raring on 2013-01-28 (2 days ago) mtime.conffile..etc.xdg.autostart.nautilus.autostart.desktop: 2013-01-28T16:57:30.718877 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1111397/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp