Firefox does not start except in Mode safe

My in-laws use Firefox on their pc windows 7, but a few days ago it stopped working. I tried all the methods that I can find - disable hardware acceleration (it has no extensions enabled), reinstalled problems firefix, firefox reset - but the only thing that works is to use when windows is in safe mode.

When I try and run Firefox in normal mode, the rotation icon appears for a few seconds and then more nothing. Don't even start and then crash, Firefox, nothing happens.

Does anyone have suggestions as to how I could get a few details of what is causing the problem or any other resolution I could try that?

Thank you
Neil

Enable Firefox through your firewall/Antivirus.

Tags: Firefox

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