Created attachment 800726 [details] vcard.png User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:23.0) Gecko/20100101 Firefox/23.0 (Beta/Release) Build ID: 20130803193131 Steps to reproduce: Thunderbird fails to save entered values of messenger contacts in the vCard editor. Try to enter something for example as Google Talk or Skype. Press OK and re-open the window. The fields are blank. See attached screenshot.
Please also have a look at Bug 247154.