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Thunderbird hangs and won't start up in Safe Mode on mac OS Catalina 10.15!!! How do I fix this? Currently using Mac Mail 13 as a substitute.

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  • Last reply by Wayne Mery

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I upgraded to Catalina macOS 10.15 on my Mac and my Thunderbird would not work and crashed. I decided to reinstall Thunderbird from scratch and Thunderbird still just hangs on startup. Staring Thunderbird in SAFE mode does not work either. Using Mac Mail until this is fixed. HELP!!!

I upgraded to Catalina macOS 10.15 on my Mac and my Thunderbird would not work and crashed. I decided to reinstall Thunderbird from scratch and Thunderbird still just hangs on startup. Staring Thunderbird in SAFE mode does not work either. Using Mac Mail until this is fixed. HELP!!!

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Do you get aThunderbird crash report window? If you do, please post your crash IDs per https://support.mozilla.org/en-US/kb/mozilla-crash-reporter-tb#w_viewing-crash-reports