realitygaps

_Go to your Owncloud installation <https://myowncloud/remote.php/mozilla_sync> and accept the SSL Certificate
_Open about:config
_Create: services.sync.username <string> the value should be a hash not the username itself. (You only need the hash if the
sync was setup with a pre FF29, if you start from scratch the string doesn't matter)
You can look this up in an older browser or in the logs of your Owncloud server!!
_Go to: Preferences -> Sync -> Setup Firefox sync (you should see the old UI now)
  'I Have an Account'
  'I don't have the device with me'

  'Account' - again use the hash NOT the actual username!