Izimpendulo zakamuva ze-Upgrade to 78.2.1 not able to find existing profilehttps://support.mozilla.org/zu/questions/13037732020-09-14T18:19:59-07:00Unfortunately it turned out that, during the upgrade, it destroyed the prefs.ini file. Compounded by2020-09-14T18:19:59-07:00roger_evanshttps://support.mozilla.org/zu/questions/1303773#answer-1349582<p>Unfortunately it turned out that, during the upgrade, it destroyed the prefs.ini file. Compounded by a backup the same evening overwriting a good one from the previous evening.
</p><p>I have managed to reinstate all the pop3 accounts, but there are a couple of IMAP accounts that appear to have had all the emails, prior to the time of the "upgrade", deleted from the hosting company's server. Almost as if, whatever happened, sent a "delete all" message back. I know they were there the day before the upgrade.
</p><p>Hi ho, will see if I can get them restored.
</p><p>Cheers
</p>Since version 68, Thunderbird works on a dedicated profile per installation (version of Thunderbird)2020-09-12T01:12:31-07:00Toad-Hallhttps://support.mozilla.org/zu/questions/1303773#answer-1348941<p>Since version 68, Thunderbird works on a dedicated profile per installation (version of Thunderbird).
<a href="https://support.mozilla.org/en-US/kb/unable-launch-older-version-profile" rel="nofollow">https://support.mozilla.org/en-US/kb/unable-launch-older-version-profile</a>
</p><p>I would suggest you exit Thunderbird on Windows 10 computer, then get Windows 7 computer updated so it is running exactly the same version as on the Windows 10 computer as you will find two different versions will have issues running the same profile.
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