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Firefox will not run on my MacBook Pro, tried MacOS Sierra and MacOS Mojave.

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  • Freagra is déanaí ó MikeJr

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I double click the Firefox application in the Applications folder. The icon bounces, but it doesn't complete opening the application. There is no pop up dialog window to explain why.

I double click the Firefox application in the Applications folder. The icon bounces, but it doesn't complete opening the application. There is no pop up dialog window to explain why.

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Have you tried uninstalling Firefox and reinstalling it?

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Yes, many times. This is occurring on more than one computer.