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As soon as i downloaded firefox, this "mozctl.dll" is not working. What do i do?

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I downloaded firefox 3.6 and tried to run another program. My computer said "mozctl.dll was not working. What do i do?

This happened

Not sure how often

== I downloaded firefox 3.6

I downloaded firefox 3.6 and tried to run another program. My computer said "mozctl.dll was not working. What do i do? == This happened == Not sure how often == I downloaded firefox 3.6

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