Looking for logging into the Thunderbird 52.6.0 Gmail Problem site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Thunderbird 52.6.0 Gmail Problem site. After that you can login as usual with your login credentials.
https://support.mozilla.org/questions/1204863
https://support.mozilla.org/de/kb/thunderbird-und-gmail
https://www.thunderbird-mail.de/forum/thread/79398-gmail-pop-funktioniert-pl%C3%B6tzlich-nicht-mehr/
https://productforums.google.com/d/msg/gmail/H5m8ntY40n0/UOxe80ONAAAJ
http://forums.mozillazine.org/viewtopic.php?f=39&t=3038114
https://www.computerbild.de/download/Thunderbird-7818.html
https://de.wikipedia.org/wiki/Mozilla_Thunderbird
https://www.thunderbird.net/en-US/thunderbird/60.5.0/releasenotes/
http://xnotifier.tobwithu.com/dp/node/3675
https://www.heise.de/download/product/thunderbird-18801
https://www.chip.de/downloads/Thunderbird_13009879.html
https://www.pair.com/support/kb/setting-up-email-thunderbird-for-mac-os-x/
https://askubuntu.com/questions/1004809/what-is-reason-for-failed-to-connect-to-server-in-thunderbird