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Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

When I start firefox about ten tabs of firefox appear and a popup screen from www1.uberack-safe.rr.uu with a warning that have malware attacks and to check system immediately how do I stop this is it legitamite

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And when you click the x in top right corner it runs some security thing anyway and a security analysis - mozilla Firefox screen comes up with a windows security that lets you know that your system is infected (its not as I have run AVG) and that if you navigate away from page that it will damage. so it wants you to cancel to prevent damage. When you press ok to navigate away it all shuts down if you clik on x it continues the scan of system

And when you click the x in top right corner it runs some security thing anyway and a security analysis - mozilla Firefox screen comes up with a windows security that lets you know that your system is infected (its not as I have run AVG) and that if you navigate away from page that it will damage. so it wants you to cancel to prevent damage. When you press ok to navigate away it all shuts down if you clik on x it continues the scan of system

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Do a malware check with some malware scan programs.
You need to scan with all programs because each program detects different malware.
Make sure that you update each program to get the latest version of the database before doing a scan.

See also "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked and What to do when searches take you to the wrong search website