Hi. I am trying to import into my new Mac an old Thunderbird profile that was created in a PC, but that I use in my previous Mac. In the past, I have dragged the old profile into the new profile folder, and then used About Profiles under Troubleshooting Information to link to that imported profile and set it as the Default. Now, I click on Create a New Profile and it won't let me link. Also, the Import tool did not work. What am I missing? Thank you!