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Firefox freezes after Mac OS Catalina 10.15.7 upgrade

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After upgrading to Mac OS Catalina Version 10.15.7, Firefox Browser 81.0 keeps freezing after sleep. Chrome and Safari will start. It's just Firefox, and I have to restart my laptop (mid-2012 Macbook Pro). Any workarounds appreciated!

After upgrading to Mac OS Catalina Version 10.15.7, Firefox Browser 81.0 keeps freezing after sleep. Chrome and Safari will start. It's just Firefox, and I have to restart my laptop (mid-2012 Macbook Pro). Any workarounds appreciated!