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Freezing and High CPU usage in Thunderbird on MacOS

firefox3155
firefox3155
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First time using Thunderbird 143.0 (64-bit) on MacOS Sequoia 15.6.1. System is a MacBook pro 2.4 GHz 8-Core Intel Core i9 with 64 GB 2667 MHz DDR4.

Installed Thunderbird. Added a fastmail.fm and icloud.com account. Fastmail account is 14GB account. icloud is 50MB.

System is continually pausing during use and the mouse turns into the rainbow spinner. Application recovers after a second or two but it's annoying that it happens.

Thunderbird ActivityManager shows that indexing is not in progress. MacOS ActivityManager shows that CPU for Thunderbird going up to 100% during these periods.

Aside from the pauses, Thunderbird is stable and does not crash.

First time using Thunderbird 143.0 (64-bit) on MacOS Sequoia 15.6.1. System is a MacBook pro 2.4 GHz 8-Core Intel Core i9 with 64 GB 2667 MHz DDR4. Installed Thunderbird. Added a fastmail.fm and icloud.com account. Fastmail account is 14GB account. icloud is 50MB. System is continually pausing during use and the mouse turns into the rainbow spinner. Application recovers after a second or two but it's annoying that it happens. Thunderbird ActivityManager shows that indexing is not in progress. MacOS ActivityManager shows that CPU for Thunderbird going up to 100% during these periods. Aside from the pauses, Thunderbird is stable and does not crash.

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All Replies (3)

firefox3155
firefox3155 Jụọ onye nwe ya ajụjụ
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By the way I also have thunderbird running 140.2.1esr on a Linux Ubuntu laptop with a slower processor. It's configured with the same accounts and more. It doesn't freeze like 143 does on the Mac.

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firefox3155
firefox3155 Jụọ onye nwe ya ajụjụ
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I installed 140.3.0esr on the Mac. Same behavior.. I even went as far as removing all accounts. The frequent pauses still happen.

WHAT IS GOING ON?

Thunderbird is crap.

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Wayne Mery
Wayne Mery
  • Top 10 Contributor
  • Moderator
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What address books are showing?

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Jụọ ajụjụ

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