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How To Migrate SeaMonkey Email To Thunderbird

I’ve been using SeaMonkey email forever, or it seems like it. I was using it when it was called Mozilla Suite. But now I keep getting an email from Gmail saying something about unsecured devices. If I disable this in my Gmail settings, SeaMonkey can no longer access my Gmail accounts.

SeaMonkey isn’t updated very much. I was wondering if an updated email client would satisfy Google. So I switched to Thunderbird. Now the problem is transferring my Seamonkey profile over to my Thunderbird profile.

What Didn’t Work

First, I tried importing directly to Thunderbird from SeaMonkey.

Right-click on the top bar and then click on Menu Bar to show the menu.

Then click on Tools, and then Import…

I selected on Import Everything and then Next.

Then SeaMonkey 2 or later and then Next.

It didn’t work.

What Did Work

So what I did was to copy the contents of my profile in SeaMonkey to the profile folder in Thunderbird.

So I went to my profile path on my system and inside the 7vwkpg24.default folder I highlighted all the files and folders. (Ctrl+A) Note: your profile folders will probably have different numbers than mine.

C:\Users\Terry\AppData\Roaming\Mozilla\SeaMonkey\Profiles\7vwkpg24.default

Then I went to the Thunderbird profile folder. There are two. So I tried what looked like the most obvious one, t0g983m6.default. It was empty. I had Thunderbird closed at this point. So then I opened it and, nothing.

C:\Users\Terry\AppData\Roaming\Thunderbird\Profiles\t0g983m6.default

There was a second folder, u6jwze2k.default-release. So I moved everything from the first to the second and when I re-opened Thunderbird all my accounts and settings were there.

C:\Users\Terry\AppData\Roaming\Thunderbird\Profiles\u6jwze2k.default-release

At first, it didn’t seem like it was downloading any email but then it prompted for some passwords to my accounts and everything seems to work. I have also noticed that the contents of u6jwze2k.default-release have automatically been copied to the t0g983m6.default folder. Weird, but I don’t care– it’s working.

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