Hello there shay1 We have read you’re message. We try to help you.

So you have two profiles.oke.

To import the Inbox from one profile into the other profile Local Folders account, you need to select the 'Inbox' mbox file.

The answer is no. When it is hat they move on before the new one arrives. You can also put it in a new folder to be sure if you wish. when you use the import export tool.

All emails will stay in place as long as you don't delete one.If you just properly installed the hard drive as it should be.

You could use the import - export tool and look at the picture I sent you to see which folders you should have which contains the mbox.file which is important.

https://support.mozilla.org/en-US/kb/installing-addon-thunderbird

https://addons.thunderbird.net/nl/thunderbird/addon/importexporttools-ng/?src=ss

To simply move Thunderbird to another personal computer use this form. https://support.mozilla.org/en-US/kb/moving-thunderbird-data-to-a-new-computer

or you can use

http://kb.mozillazine.org/Moving_your_profile_folder#Using_the_Profile_Manager_to_move_your_profile

Greetings Firefox volunteer.

Reading the instructions for importing my profile, it looks as if the last instruction is to 'replace data'. Will this delete the last week's emails?

If 'replace data' means copying the contents of the recovered profile into the profile on your new PC, then yes, that will certainly 'replace data'.

Make sure to backup the profile on the new PC before doing anything else.
https://support.mozilla.org/kb/profiles-where-thunderbird-stores-user-data#w_backing-up-a-profile

What is the account type in the recovered profile - POP or IMAP?

What is the account type in the new profile?

Your course of action depends on that information.

Thanks. I've backed up my current profile with the last week's emails in it, although I don't need these emails anymore - the important few have been forwarded to my ipad.

I've located the backup profile which I want to restore, containing my old emails and my address book, on an external drive.

I've created a new profile with my name and email account details.

I've copied the profile I want to restore. I just don't know where to paste it! I've looked at both 'import' options in TB; one is for calendars and the other wants to import data from another email program. Neither of these seem right.

If I locate my new profile following the instructions on here, then click on it to 'paste', it just opens my mailbox. How do I transfer the backed-up profile to my pc please?

Appreciate the help. Thanks.

Hello there Shay Again.

You want to transfer your profile to a new Computer oke.

You do use your profile folder. https://support.mozilla.org/en-US/kb/profiles-where-thunderbird-stores-user-data

Connect the external hdd. Put back your profile folder back on C drive.

Then: Go to the Help menu and select Troubleshooting Information.(Read on please). https://support.mozilla.org/en-US/kb/moving-thunderbird-data-to-a-new-computer

Or use this http://kb.mozillazine.org/Moving_your_profile_folder_-_Thunderbird#Use_the_Profile_Manager_to_move_your_profile

Greetings Firefox Volunteer.

I've copied the profile I want to restore.

You want to copy the contents of the profile to be transferred to the new computer, not the profile folder itself.

I just don't know where to paste it!

Into the profile folder on the new computer. To locate the profile see
https://support.mozilla.org/en-US/kb/profiles-where-thunderbird-stores-user-data#w_how-to-find-your-profile

I've looked at both 'import' options in TB;

There is nothing to be imported, you simply copy over the data.

How do I transfer the backed-up profile to my pc please?

Using Windows Explorer copy the contents (i.e. all all files and folders) of the old profile and paste it into the profile folder on the new computer.
Make sure Thunderbird is closed when doing that.

OK, I've followed all of this advice. Thanks for sticking with me. It hasn't worked, and I suspect it's because what's been recovered from my old hard drive isn't quite in the format it should be. Here's a screenshot of what I'm trying to bring across to my new pc (see image).

Opening my Profile folder (whilst having closed TB) and then pressing paste and agreeing to replace data copies these files, but when I reopen TB neither my old mail nor my old address book are there.

Any more help you can give would be gratefully received.

Update: interestingly, all my old icloud emails have just appeared in my inbox. But not those to my main email address, and not my address book.

when I reopen TB neither my old mail nor my old address book are there.

The address book is store in the file abook.mab. As per your screenshot that file has a size of 2 kB. This isn't a lot, and I'd guess your address book is empty.

Are you certain you copied the data from the correct profile folder?

Are there any other profiles you can copy from?

Thanks for the reply. This data was extracted from a very corrupted hard drive, not by me, so I'm frankly grateful for anything recovered! This is way past my level of expertise.

The address book has actually been exported to a spreadsheet, so I can go through and manually copy across the ones I want to keep. That's not the end of the world.

I would still like, if possible, to restore my old emails. If you have any hints on how to do that, that would be great.

I would still like, if possible, to restore my old emails.

Check whether you find another profile folder somewhere in the data recovered from the crashed drive.
You'll need something you can copy over to the new PC. Usually this would be a backup created prior to the incident.
This may also be a good reminder to create Thunderbird profile backups on a regular basis.