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when i use ctrl key then opne firefox, how to stop it,

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When i use left Ctrl key then open firefox, I can't solve it, plz solve it.

When i use left Ctrl key then open firefox, I can't solve it, plz solve it.

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Could you describe this in a little more detail. Does this problem occur when you are viewing a web page and filling in a form in Firefox, or does it occur completely outside Firefox? Clicking a link? It would be really helpful if you could describe the specific steps to reproduce the problem.