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On starting Firefox, I get the message 'Firefox is already running', which it is not.

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  • Last reply by Terry

isco
isco
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On starting Firefox, I get the message 'Firefox is already running', which it is not. I have tried uninstalling and re-installation but always with the same result. What is the solution please? This started yesterday afternoon (UK 04Feb2023. Version 109.0.1, first offered to Release channel users on January 31, 20234Feb23)

On starting Firefox, I get the message 'Firefox is already running', which it is not. I have tried uninstalling and re-installation but always with the same result. What is the solution please? This started yesterday afternoon (UK 04Feb2023. Version 109.0.1, first offered to Release channel users on January 31, 20234Feb23)

All Replies (1)

Terry
Terry
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You may need to remove a lock file.

https://support.mozilla.org/en-US/kb/Firefox-already-running-not-responding