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Thunderbird Suddenly Won't Recognize Existing Account Settings

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After rebooting Windows 8, Thunderbird now does not find the existing Account Settings. Thunderbird now only shows a Home tab with the option to create new accounts. No changes to Windows or Thunderbird occurred to my knowledge. This was just a case of closing down a laptop with everything working just fine, and re-booting several hours later to find Thunderbird has gone wonky (technical term).

I've checked the Troubleshooting information under Help Menu, and Thunderbird seems to know the correct profile and the correct location. However, when looking under the Tools > Account Settings, the settings screen shows no account or account settings defined. Values are present under Tools > Options, including the account passwords. When going in through Windows File Manager, I find that the profile appears to be intact, including the inbox, drafts sent mail, local folders, etc.

The version number is 60.52.2 build 20190221150524 (32 bit version). I currently don't have a Thunderbird profile backup although I do daily incremental computer backups which include the Mozilla and Thunderbird directories in User/Appdata.

Some trouble-shooting strategy would be appreciated. Thanks!

After rebooting Windows 8, Thunderbird now does not find the existing Account Settings. Thunderbird now only shows a Home tab with the option to create new accounts. No changes to Windows or Thunderbird occurred to my knowledge. This was just a case of closing down a laptop with everything working just fine, and re-booting several hours later to find Thunderbird has gone wonky (technical term). I've checked the Troubleshooting information under Help Menu, and Thunderbird seems to know the correct profile and the correct location. However, when looking under the Tools > Account Settings, the settings screen shows no account or account settings defined. Values are present under Tools > Options, including the account passwords. When going in through Windows File Manager, I find that the profile appears to be intact, including the inbox, drafts sent mail, local folders, etc. The version number is 60.52.2 build 20190221150524 (32 bit version). I currently don't have a Thunderbird profile backup although I do daily incremental computer backups which include the Mozilla and Thunderbird directories in User/Appdata. Some trouble-shooting strategy would be appreciated. Thanks!
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  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36 AVG/71.0.693.100

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Matt
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3213 solutions 21974 answers

Chosen Solution

I think this is the information you need http://kb.mozillazine.org/Recovering_a_profile_that_suddenly_disappeared
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Question owner

Hi Matt: Yes, this note helped solve the problem. It turned out the Prefs.js file was at fault as the note suggested. I went to my computer backup history and pulled the Prefs.js file from just before the problem occurred and overwrote the existing version with the backup copy (after making a copy of the old just in case) and now Thunderbird is back to normal.

Thanks so much for your help!

Hi Matt: Yes, this note helped solve the problem. It turned out the Prefs.js file was at fault as the note suggested. I went to my computer backup history and pulled the Prefs.js file from just before the problem occurred and overwrote the existing version with the backup copy (after making a copy of the old just in case) and now Thunderbird is back to normal. Thanks so much for your help!
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