Hello there We have read the question We try to help

I could not get connected to the server. That error message appeared on that desktop or laptop screen.

The first thing to do is to create a new profile and to move the bookmarks that are there to the other profile ,then things are fixed and you are ok to use the new profile and remove the old one.

Also VPN use could block certain subjects. Try to turnt it off and see if it solve some of the issue s here . Antivirus programs like Avast, Kaspersky ,BitDefender ,the use of them could or can behave aggressively to some other subjects of use from it like blocking traffic and that is creating that error of you ,it might be that the method of syncing with some desktop and mobile devices with the use of WiFi or cable usage ,that Firefox profile of that version is getting that error and can be corrupted of that use of that sync method that way , even with normal use of sync method ,try to get a new profile in the latest software release from Thunderbird.

Greetings Firefox volunteer

Hello there

https://www.thunderbird.net/en-US/thunderbird/releases/ Greetings Firefox volunteer

Hello there

To solve these written issues .

Disable vpn and antivirus. Take a new profile from Firefox. Or reset Firefox SSL. The best method to avoid this error in the future if the situation is fixed again is to avoid vpn and other settings from the past and also try a another antivirus suite or turn off the live action protection and leave the SSL configuration on the right side and do not mess or configure with these settings again. Also the same recept for these other or G mail accounts . Thank you to help you.

Greetings Firefox volunteer.

Jacob,

Start Windows in safe mode with networking enabled - https://support.microsoft.com/en-us/help/12376/windows-10-start-your-pc-in-safe-mode

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