Since today (May 27 2015) I cannot use one of my Gmail accounts w/ T.Bird anymore. On the other one (the oldest) I had to set security to "low" or something today via the web-interface of Gmail. Then it sort of worked again (the address book add on doesn't work anymore, but that's another problem). When I check my Google e-mail via a web browser then I can see that there are mails. But I do not see these mails in Tbird. Has Google done some extensive fiddling today? Does Thunderbird still work w/ a gmail account????