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Can't open and getting the error message:“Firefox” can’t be opened because Apple cannot check it for malicious software.

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  • 2 have this problem
  • Last reply by Standard8

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Keep getting the same error. Have tried to open my profile and get same error. DELETED hidden updates folder and get same error. Reinstalled and get same error. My firefox was working fine last night. What happened? HELP??

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Hi, from what I can tell you're using Mac OS 10.15 which is a beta version. We are still working on support for their beta version, I believe it may be released in the next Firefox version - 68.0.1 - but until that's released we can't say for sure.

A workaround in the meantime could be to use a Beta version of Firefox (69b3 or later) which I believe already has support for Mac OS 10.15.

Note that using the beta version should create a new separate profile, but changes in one version will not be reflected in the other.