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i cannot get Gmail configured in Thunderbird. ive deleted it and re tried countless times but is keeps saying wrong credentials. ive followed all the guides and done everything . what is NOT happening , is Thunderbird does not open a browser to sign in with google. why?

When I delete a message on Thunderbird Mobile, it still shows on my desktop (does not sync). Please advise the process where the messages in the mobile app is consistent with desktop. Thanks!

I have set the retention policy on my Thunderbird account for 30 days both in the setting for the inbox and the All Mail inbox and I have used the same setting for my account however it only works on the inbox and I have 1745 message in the All Mail folder which intermittently deletes the older messages and then restores them.

Am I doing something wrong?

I am using Mac OS Ventura 13.6.9. I have been a Thunderbird user for many years. Since this last update, I have started having issues where not all emails are displaying. Seems like most recent emails open correctly, but when I get to emails that are a day or 2 old, I get the the following banner across the top of the screen when the email opens, but can't open the remainder of the email.

I have attached a screenshot to show what I am seeing.

I am using gmail and I can access the emails in gmail, but not in Thunderbird. What is the fix for this?

Thanks

Laura

setting up a new computer, trying to set up my gmail account on Thunderbird I get this message... Secure connection failed

' live.mozillamessaging.com uses an invalid security certificate.

The certificate is not trusted because the issuer certificate has expired.

(Error code: sec_error_expired_issuer_certificate)

   *   This could be a problem with the server's configuration, or it could be
     someone trying to impersonate the server.

   *   If you have connected to this server successfully in the past, the error may
     be temporary, and you can try again later.

  Or you can add an exception…

I have 2 machines side by side, the old works just fine , its 12 yrs old, i want to use my new one... how do I fix this ?? And yes ive tried manual settings and all that.. its the certificate in Thunderbird thats expired it says

I got a new laptop and wanted to set up Mozilla Thunderbird for an existing Gmail account. I tried several times, all failed, with a warning "unable to connect with server imap.gmail.com, may be userid and password are wrong". But I can logon to my Gmail account (with the same userid and password) on Firefox website and on my previous computer, so the id and password are correct). And I was able to set up another Gmail account on Thunderbird in this new laptop (so the version of Mozilla is not the culprit) with the same server settings (port for incoming and outgoing mails, authentication methods SL/TLS, O Auth2 etc). Will someone please help me?