I am trying to sync my Thunderbird calendar to my gmail calendar. I have followed the directions here https://support.mozilla.org/en-US/kb/using-lightning-google-calendar When I get to the step after entering my email address I get an error telling me to allow cookies. I checked my settings and cookies are allowed, so I'm not sure what to do. I would really like to get this connected because I like working through thunderbird better than logging into google 10 times per day.