Why do you ask this TWICE? Please close this copy as resolved.

I have two email accounts 1 being pop the otherr imap. i want to be able sinc those two accounts on two diffent computers by using a ondrive file. I did not realize iSENT TWO OF THE SAME QUESTION. I HAPPEN TO BE BLIND AND THAT IS WHY THIS IS ALL CAPITAL LETTERS I REALIZED IT TO LATE.

THANKS

The challenge you face with POP is that Thunderbird runs on the client PC. Your first goal would be to get both PCs sharing the same onedrive . Onedrive wouldn't be keeping the two in sync, you would be being careful with each PC's use. I suggest trying to get this working first on one PC. My primary suggestion is to convert the POP account to IMAP and then IMAP automatically keeps the accounts in sync. That's the easiest method and the most reliable.

Juno is my email provider and they do not use imap. When I try to setup an account in thunderbird using imap i get an error. How do I tell the two copies of thunderbird to use the profile on the onedrive? or how do I download juno emails as imap?

First, POP cannot be accessed as IMAP. You need to leave Juno to achieve what you want. Juno, to my knowledge, is only a dialup provider. Is that why you are using it? That is, if you have internet access regularly, my suggestion is to switch from Juno to an email provider that supports IMAP. Three excellent free email providers are gmail, outlook, and gmx (and, I'm sure there are others). Switching to any of those eliminates your concern about sync'ing.

I do not want to leave juno. Is there a wayto sync the two copies of thunderbird to one copy of the profiles on onedrive

I am not sure of that. I suggest first getting one copy working. The hard work is as I posted earlier. True sync is done by you, using one PC at a time and verifying that the onedrive connection is the same.

I do have both copies working but how do I tell each copy where the files are on the onedrive?

If you want to simply loose your data, keep on this pone drive caper. It is a recipe for data loss in the extreme. Thunderbird was designed to run on a local hard disk and generally struggles with data stored on local server shares that are accessible at gigabyte networks speeds. One drive is at best a slow road to data and Thunderbird will mess in it's own nest if you place profile data on onedrive or any other cloud provider storage. The most usual think is hundreds of copies of files appear in the profile folder. Settings changes are lost and mail files a corrupted beyond recovery. That is why there is not a simple how to. Because it is a very very bad idea.

You might be able to obtain this using the Thunderbird sync, but that has not made it to a release version and is still I think under active development. I did see a note suggesting folks could test it on pre release versions. It is certainly in development versions, but I would not trust it with valuable production data.

My personal suggestion of sign up with a mail provider that does offer IMAP, google or GMX would do. Set up the new account to periodically log into the Juno account and retrieve the mail that is in that account. (generally this is a 15 minute to 30 minute frequency.

Then use the new account in Thunderbird for your Juno needs as it will sync through IMAP and you still have access to the mail and the account.