Google Browser Failed to create socket directory

error pada Chromium dan Google Chrome
[16749:16749:11383563362:ERROR:process_singleton_linux.cc(954)] Failed to create socket directory.
[16749:16749:11383563856:ERROR:chrome_browser_main.cc(1543)] Failed to create a ProcessSingleton for your profile directory. This means that running multiple instances would start multiple browser processes rather than opening a new window in the existing process. Aborting now to avoid profile corruption.
Firefox
** (firefox:16841): ERROR **: I can’t write to ‘/tmp/orbit-tux’, ORB init failed
Trace/breakpoint trap (core dumped)

cara untuk mengatasinya

chmod 755 /tmp

masalah diatas terjadi karena tidak bisa menulis ke /tmp