User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36 Steps to reproduce: In Account options (or "Identity" options), check "Attach my vCard to messages" and "Edit card" (add information). The card attached does not follow RFC 2426 and is not recognized by other mailers/contact managers. There multiple severe problems with the attached card. Actual results: The attached card is only recognized by Thunderbird and not any other mailers. Expected results: Attached VCF should follow ideally RFC 6350 (or RFC 2426 as a minimum) to be recognizable by other mailers. As an improvement, the card editor should allow adding more fields, such as photo.