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unknown printer error, but I can print with every other program other than firefox

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When attempting to print a page off internet using firefox 3.6.1.2., it goes through to printer box to confirm printer, I click ok then comes up with "unknown printer error". I can use any other program and it prints okay. I have gone through control panel and tested printer, everything is okay.

When attempting to print a page off internet using firefox 3.6.1.2., it goes through to printer box to confirm printer, I click ok then comes up with "unknown printer error". I can use any other program and it prints okay. I have gone through control panel and tested printer, everything is okay.

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I have now solved this, I had already re set my modem, and then after posting this, decided to re boot computer and ta dah, it worked thanks anyway