When I try to do log in on Todoist from Gmail the extension lead me to Todoist but when I return to gmail I still not logged.
I'm using chromiun on Ubuntu 14.04. Excuse my english ;-)
Please make sure that your browser accepts third-party cookies. If enabling them will help, then you could try to add [*.]todoist.com as an exception.
That fixed the issue, sorry and thanks for answer so fast!
Спасибо мне помогло . Cool !