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Firefox4 Updater.exe is being flagged by Norton Anti-Virus 2010 as containg a virus is is removed

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When trying to update Firefox 3.1.16 to Firefox 4, Norton Internet Security says that Updater.exe contains a virus. Norton then removes the program and the update fails. What is going on?

When trying to update Firefox 3.1.16 to Firefox 4, Norton Internet Security says that Updater.exe contains a virus. Norton then removes the program and the update fails. What is going on?

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Somehow it got marked by Norton. I can't imagine that Firefox contains a virus, anti-virus-tools are a bit strange from time to time. Update your Norton register tomorrow and reinstall or deactivate it for installation.

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It is being flagged as having the WS.Reputation.1 virus by the Insight part of Norton as the Updater.exe program is being downloaded and analyzed by Norton Insight.

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Is it still occurring?