http://bugzilla.opensuse.org/show_bug.cgi?id=1178596 http://bugzilla.opensuse.org/show_bug.cgi?id=1178596#c11 Jeff Stern <jas.61803@gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jas.61803@gmail.com --- Comment #11 from Jeff Stern <jas.61803@gmail.com> --- I too encountered the Unable to create io-slave. klauncher said: Unknown protocol 'mailto'. cryptic error. However I was lucky enough to find a solution posted in a (more fruitful) forum discussion and the solution posted by user "abruenin" (post #5).. https://forums.opensuse.org/showthread.php/544819-mail-link-on-any-browser-U... .. also worked for me: systemsettings5 --> Applications --> Default Applications --> Email Client --> There are 2 Thunderbirds, so choose the one not currently selected. I saw 2 Thunderbirds (spelled exactly the same, and no underscores, "_"). Already selected was the 2nd (lower). When I selected the 1st (upper), now the mailto: linking worked. Curious, I wanted to see what would happen if I returned to select the 2nd. After doing so, the mailto: linking broke again. So I re-selected the 1st, and again, the mailto linking worked. (I have rebooted the machine since then, and now I see that only 1 Thunderbird choice appears in the Email Client drop-down list.) -- You are receiving this mail because: You are on the CC list for the bug.