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Had TBird 59.0b1 (32-bit). Installed 52.6.0. Now missing address books & all previous Inbox emails..

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I had 59.0b1 running, but Attachment Extractor & Walnut Add-ons not supported. So per help suggestion to my earlier question & "http://kb.mozillazine.org/Go_back_to_an_old_version_of_Firefox", downloaded 52.6.0. Exited TBird, deleted my old profile in %APPDATA%. Copied old xxx.default profile over an earlier copy for insurance - some error messages "same filename". Installed new TBird version.

Walnut now works - great! Attachment Extractor still not supported..

Now all the hundred or so emails in my Inbox are gone, just downloaded a few new ones. Address books are gone.

Any suggestions?

I had 59.0b1 running, but Attachment Extractor & Walnut Add-ons not supported. So per help suggestion to my earlier question & "http://kb.mozillazine.org/Go_back_to_an_old_version_of_Firefox", downloaded 52.6.0. Exited TBird, deleted my old profile in %APPDATA%. Copied old xxx.default profile over an earlier copy for insurance - some error messages "same filename". Installed new TBird version. Walnut now works - great! Attachment Extractor still not supported.. Now all the hundred or so emails in my Inbox are gone, just downloaded a few new ones. Address books are gone. Any suggestions?

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I see what happened... I had been using POP3, downloading my email from the server & keeping it on my PC. 52.6.0 installed my account as IMAP, & after installing 52.6.0, I deleted my phone messages as usual after I review them. This then deleted all my inbox on my PC.

I am not pleased that T'Bird changed my mail account to IMAP without a dialog box asking my preferences.

I still don't know why my address books all vanished, but I had exported all of them earlier, so I just re-imported all 10,000 entries.

Not pleased with recent TBird installs!

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Chosen Solution

I see what happened... I had been using POP3, downloading my email from the server & keeping it on my PC. 52.6.0 installed my account as IMAP, & after installing 52.6.0, I deleted my phone messages as usual after I review them. This then deleted all my inbox on my PC.

I am not pleased that T'Bird changed my mail account to IMAP without a dialog box asking my preferences.

I still don't know why my address books all vanished, but I had exported all of them earlier, so I just re-imported all 10,000 entries.

Not pleased with recent TBird installs!