So...I reboot and my email in Thunderbird is jacked up. I happen to have about 6 different email profiles that come into my email client, and several filters & folders, yada yada. I live by my email! So, when it looked differently I panic.

I open it up and I have duplicate folders, I'm missing my "work" folder, and things are just odd. I head over to Mozilla.com to see if anyone else has had this very same issue...and it seem that either I stink at searching, or I am unique in this stupid boat.

• Open Thunderbird
• Click TOOLS > ACCOUNT SETTINGS
• Remove ALL accounts

• Find your Thunderbird\Profiles\4c82ejiw.default\Mail folder
• Create a new folder (i.e. BACKUP MAIL)
• Move ALL profiles to this backup folder
  
• Download the file at the bottom of this page:

• Open Thunderbird > Click TOOLS > Click ADD-ONS
• Click INSTALL
  
• Navigate to the file you downloaded
  
• Click OPEN

• In Thunderbird
• Click TOOLS > ACCOUNT SETTINGS
• Add all of the accounts that are missing
• Be sure to NOT use Global Inbox (this creates separate folders for each addy
  

• Go back to Thunderbird\Profiles\4c82ejiw.default\Mail\NEW FOLDER (the backup folder you created)
• Identify each folder by the files within it and note what folder belongs to which address.

• Back in Thunderbird, in your folder list, right-click the first folder to import
• Import mbox file --or-- Import Directly One or More mBox files
• Sort by TYPE
• Select all of the "File" type
• Click OPEN
• All folders will import, but there will be a number appended to them.
• Right-click > RENAME > Remove numbers