This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Natao arisiva ity resaka mitohy ity. Mametraha fanontaniana azafady raha mila fanampiana.

downgrade from version 80 beta 5 to current release with my existing profile?

  • 1 valiny
  • 1 manana an'ity olana ity
  • 3 views
  • Valiny farany nomen'i Toad-Hall

more options

Hi, i am on an 2008 macbook pro, with 10.11.6 installed (cannot update further) I am using Thunderbird beta until 80 beta 5, since i cannot update to the further beta released, i would like to downgrade to the current official release (78). How I can do this with my current profile?

Thank you and looking forward to your reply.

Hi, i am on an 2008 macbook pro, with 10.11.6 installed (cannot update further) I am using Thunderbird beta until 80 beta 5, since i cannot update to the further beta released, i would like to downgrade to the current official release (78). How I can do this with my current profile? Thank you and looking forward to your reply.

All Replies (1)

more options

Uninstall Thunderbird. Download and install current version from here: https://www.thunderbird.net/en-US/thunderbird/all/

On the last step of the installation do NOT select to start TB. You will need to run a command to allow you to downgrade and you will have to select the profile with Profile Manager and include --allow-downgrade in the command line, e.g. for OS X:

/Applications/Thunderbird.app/Contents/MacOS/thunderbird -profilemanager --allow-downgrade


Profile Manager starts so you can select the desired profile name, then click on 'Start Thunderbird'.

Novain'i Toad-Hall t@