Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Connection problem after Upgrading from 68 to 78 version

  • 2 replies
  • 1 has this problem
  • 1 view
  • Last reply by sfhowes

more options

after the last upgrade , from 68 to 78 , thunderbird refuses to connect to mail servers. neither POP3 incoming mail seerver : "mail.otenet.gr" nor SMTP outgoing mail server  : "mailgate.otenet.gr" the settings that have worked so far are shown in picture : "Thunderbird_ERROR_01" Using these settings i'm sending an email as is shown in picture : "Thunderbird_ERROR_02" but after updating from 68 to 78 this error is diplayed : "Thunderbird_ERROR_03"

I'm working as IT in Public Sector and I don't like to degrade hundreds of installations to previous version

I would appreciate a quick solution for my situation

thanks in advanced

after the last upgrade , from 68 to 78 , thunderbird refuses to connect to mail servers. neither POP3 incoming mail seerver : "mail.otenet.gr" nor SMTP outgoing mail server : "mailgate.otenet.gr" the settings that have worked so far are shown in picture : "Thunderbird_ERROR_01" Using these settings i'm sending an email as is shown in picture : "Thunderbird_ERROR_02" but after updating from 68 to 78 this error is diplayed : "Thunderbird_ERROR_03" I'm working as IT in Public Sector and I don't like to degrade hundreds of installations to previous version I would appreciate a quick solution for my situation thanks in advanced
Attached screenshots

Chosen solution

See this topic: https://support.mozilla.org/en-US/questions/1295861

There are two preferences that may need to be changed to correct the 'peer unsupported' error.

Read this answer in context 👍 0

All Replies (2)

more options

Some users report that a workaround is by toggling the value of the option security.tls.version.min from 3 (or 2) to 1. Would it help?

more options

Chosen Solution

See this topic: https://support.mozilla.org/en-US/questions/1295861

There are two preferences that may need to be changed to correct the 'peer unsupported' error.