User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:43.0) Gecko/20100101 Firefox/43.0 Build ID: 20150816091433 Steps to reproduce: Steps: (I try to translate the german user interface) Menu: Extra Import Address book Text file File open dialog On the right bottom there is a combobox. Please add semicolons as separators here too. Actual results: Thunderbird can't import address books from CSV files if the separator is a semicolon. But output with semicolons is the default for Outlook Express 6. Furthermore, commas are not unique. Names and numbers can have commas as separators in a lot of other languages. Expected results: Support the semicolon as separator too.
sounds reasonable if user so decides. caveat of special case where semicolons mark recipients groups (forgot the correct term), but user will know if he has those or not so it's fine to use that for importing.
Note for me: nsTextAddress::DetermineDelim() .