I'd have thought this would be a native feature (seeing as joomla allows you to connect contacts with user accounts) but we can't find any way to do this! does anyone know of any extensions/modules that would allow this?
I'm not so hot on PHP so i'd really love to not have to code this by hand!
Do you try in the user menu? Another option would be install Community Builder. Good luck!
Contacts in Joomla are handled by the builtin com_contacts compoment which provides basic functionality for adding contacts and some basic info from the back-end.
QContacts is a wonderful extension which gives you some more control over the data you can provide, but still no front-end support.
Unfortunately I am tackling this issue as well and it turns out there are no real out-of-the-box options for supporting front-end editing of contact details.