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Thunderbird downgrade on McOS

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  • Last reply by Wayne Mery

SuMo Bot
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Hallo, This morning I was prompted to upgrade to Thunderbird 91, which does not run on my Mac because it has MacOs 10.11, and the new release requires 10.12. How can I downgrade to the previous release of Thunderbird? In fact, I cannot upgrade the operating system


Thank you

Hallo, This morning I was prompted to upgrade to Thunderbird 91, which does not run on my Mac because it has MacOs 10.11, and the new release requires 10.12. How can I downgrade to the previous release of Thunderbird? In fact, I cannot upgrade the operating system Thank you

Chosen solution

You can install over the old version from http://archive.mozilla.org/pub/thunderbird/releases/78.14.0/mac/en-US/Thunderbird%2078.14.0.dmg

There is a missing update rule, which allowed updates on the unsupported OS.

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Wayne Mery
Wayne Mery
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Chosen Solution

You can install over the old version from http://archive.mozilla.org/pub/thunderbird/releases/78.14.0/mac/en-US/Thunderbird%2078.14.0.dmg

There is a missing update rule, which allowed updates on the unsupported OS.

SuMo Bot
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