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How can we block file:/// protocol to prevent any access to local disk drive from the firefox browser?

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Its been many months & we are awaiting for an solution on How can we block file:/// protocol to prevent any access to local disk drive from the firefox browser?

Its been many months & we are awaiting for an solution on How can we block file:/// protocol to prevent any access to local disk drive from the firefox browser?

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Hi Mozilla Support, please refer the archived thread below where it was confirmed the control restriction will be available in version 62. However we are still not able to configure/apply this restriction using GPO.

Please fix this long outstanding issue.

How can we block file:/// protocol to prevent any access to local disk drive from the firefox browser?