With the attraction of the recently launched Google calendar functionality, I wanted to migrate a number of family email accounts to use Gmail.
Contacts needed to be exported from Thunderbird and imported to Gmail. The version of Thunderbird in use (1.0.6) exports Contacts fine to a CSV file, but omits a header row, so Contact import fails to Gmail.
Slightly annoying, but easily fixed by pasting the header row below at the start of the CSV file. Not rocket science, but might save someone a few minutes.
first name,last name,display name,nickname,email address,alt email address, work phone,home phone,fax,pager,mobile,address1,address2,city,state,zip,country,work address1,work address2,work city,work state, work zip,,,,organization,,,,,,,,,,notes