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Got error 400! something to do with URL! what is campaign URL and visit data

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When I tried to do a problem fix for viruses I got this referred data stuff!

When I tried to do a problem fix for viruses I got this referred data stuff!

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On Windows or on Android?

It sounds as though you clicked a link for something that compensates spammers for promoting a product. I'd forget about that one.

To get links to free products for Windows, please check out our support article: Troubleshoot Firefox issues caused by malware.