How to import Thunderbird profile from newer to older version, thunderbird --allow-downgrade, Thunderbird Email Client

Category: Thunderbird Email Client

Added: 5th of February 2020

Viewed: 587 times

How to import Thunderbird profile from newer to older version, thunderbird --allow-downgrade

After installing Linux Lite, I decided to import all my emails and contacts to Thunderbird.

After launching Thunderbird I received the following error message.

Thunderbird profile error message

If you encounter this issue yourself, close down Thunderbird, open your terminal and enter the following command.

thunderbird --allow-downgrade

Ensure you have a back up of your existing email profile before running the command above.

How to back up your email and contacts using Thunderbird in Linux

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How to import Thunderbird profile from newer to older version, thunderbird --allow-downgrade

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