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Thunderbird V78 problem in MacOS Big Sur

  • 22 replies
  • 4 have this problem
  • 244 views
  • Last reply by Wayne Mery

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Dear Thunderbird and all: When will have Version of Thunderbird fit for MacOS Big Sur? Now, use Version 78.4.3 is big problem in MacOS big sur, that start Thunderbird would be waiting loooooooooog time, when thunderbird show all emails, then scrolling is lag(delay) without , dear all, do you know how resolved this problem? I had try uninstall, reinstall, I had try everything what I can do. Thanks, if you have same problem with best solution to solve problem, please ,please let me know. I am really appreciate . thank you for your urgent reply.

Best Regards! Michael.

Chosen solution

Please do Help > About to get version 78.6.1, and tell us the results. Thanks.

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Wayne Mery said

https://discussions.apple.com/thread/252041994?page=2 describes imap response/timeout issues caused by Little Snitch and Avast https://bugzilla.mozilla.org/show_bug.cgi?id=1677272 describes display slowness https://bugzilla.mozilla.org/show_bug.cgi?id=1677380 describes a rare Mac address book issues Do one of these match your problem?

First one is not even related to Thunderbird. Personally for me - none of those apply. I don't have Little Snitch and for Antivirus, I disabled my Bit Defender when I started having this issue and that has not made single bit of a difference. Neither does any of the second or third issue apply - if you care to read the problem I posted, the application does not even start - so no usability issues apply. Incidentally when it does start, it works just as normal - no issues whatsoever. I cannot say for OP problem but my is at the moment solved by moving to older 7.4.3 and waiting for about 5 minutes after initial Mac startup to run Thunderbird.

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Chosen Solution

Please do Help > About to get version 78.6.1, and tell us the results. Thanks.

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