Two days ago T-bird offered an update and this error message popped up. '''Thunderbird Error: Platform version "115.3.1" is not compatible with minVersion >= 115.4.0''' I found instructions to download and reinstall T-bird. When I did that there was a question about okaying a certificate with a warning. I chose not to do that because it sounded like it wasn't safe. T-bird wouldn't open and the same error message came up again. How can I get T-bird to work and save my email??? Will Windows 10 System Restore take me back to when T-bird worked??? Help!!