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fire fox locked up ( security-center-codeOX268d3.....

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  • Last reply by cor-el

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has given me a number to call 1-888-224-2613 to unlock my screen on my firefox browser

has given me a number to call 1-888-224-2613 to unlock my screen on my firefox browser

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Can you close the offending tab or possibly pop-up window?

Try to start Firefox with the about:blank page by creating a copy of the current Firefox desktop shortcut. Add a space and -url "about:blank" to the target field in the Properties.

You can do a malware scan.