Remove all items in Options/Privacy & Security/Passwords/Saved Passwords, check that cookies are allowed in TB Options/Privacy & Security, check that the authentication for the incoming and outgoing servers is OAuth2 (should be done automatically when adding a new account), then restart TB and enter the (confirmed working) account password in the OAuth browser window, where you grant TB access. Disable a VPN if you have one.

Thank you for your speedy reply!

1. Remove all items in Options/Privacy & Security/Passwords/Saved Passwords Done

2. check that cookies are allowed in TB Options/Privacy & Security Done

3. check that the authentication for the incoming and outgoing servers is OAuth2 (was done automatically when adding the account), then restart TB and enter the (confirmed working) account password in the OAuth browser window, where you grant TB access Done, but I get NO OAuth browser window!

4. Disable a VPN if you have one. Done, I have no VPN switched on

I wish I had done the following steps one by one rather than all at once, because then I would know which step was the culprit. However, for anybody else having a similar problem, here's what I did and GMail setup now works:

1. switched off Avast AV 2. found and deleted two Gmail accounts in SMTP

Once I had done this I re-setup the account and this time I had the OAuth windows and everything flowed smoothly.

Thank you for your help. We get there eventually!! :thumbsup:

I have exactly the same problem, but the solution doesn't work: Remove all items in Options/Privacy & Security/Passwords/Saved Passwords > OK Check that cookies are allowed in TB Options/Privacy & Security > OK check that the authentication for the incoming and outgoing servers is OAuth2 (should be done automatically when adding a new account)>OK restart TB and enter the (confirmed working) account password in the OAuth browser window, where you grant TB access. > This part doesn't work at all. The password is good, verified twice. I always get the same result: TB is unable to connect to gmail, messaging that either the configuration (automated), the user ID (...) or the password (checked again and again) are probably incorrect. Quite a problem... It is not as if Gmail was not used as an email provider... Thanks in advance for any answer Best

[Edit] TB asks my password for Google calendar, not for the email

These are things you can try:

1. switch your AV off whilst setting GMail up 2. remove any left over Gmail SMTP accounts 3. remove any GMail *.msf files from

C:\Users\%username%\AppData\Roaming\Thunderbird\Profiles\xxxxxxx.default\ImapMail

I did those and then I could set up GMail again.

Good luck!

It worked perfect! Thanks

Same problem. I use NOD32 AV 14.0.22.0. Pausing AV was not enough, I had to disable "Host Intrusion Prevention System" HIPS. None of the previously mentioned "fixes" worked by themselves. So when I disabled HIPS, I had already done the other steps. I don't know if that means the other steps were necessary or if disabling hips would work on it's own. Sorry but I already spent too much time on this to try to sort it out. It works now so off I go.

This is getting crazy!

I have managed to get my main ISP account working but I cannot get the mail in either of my two gmail accounts!

I have followed ALL of the above suggestions and nothing works, including deleting everything and using OAuth2, and pausing Eset AV. It shows "<account>: Connected to imap.gmail.com..." but nothing happens!

Incidentally the connections to the two google calendars in Lightning work perfectly. (I am loathe to delete anything that's working!!)

Any other suggestions?

Alan

Thank you thank you. The HIPS Email Protocol checking in ESET was the problem.

Hi all,

Unfortunately I have the same problem. I went through this topics, applied all suggestions also disabled HIPS in ESET, and it simply does not work.

What is interesting, that when I select advanced config and click that I understand that window will be closed; I can compose email, which is sent via smtp (I have to however provide password), mail is sent but can't by copied to sent folder.

Version 78.5.1

EDIT: Got it working. Uninstalled TB, removed all TB folders from all %appdata% folders (local, roaming), restarted and installed again and it just worked. No idea what was wrong before though.