Can Avira blank virus be deleted?

Hi guys. I think my desktop is infected with a virus. I was browsing a web page with my Firefox browser and Google as homepage. I clicked a button on the said webpage and it opened a lot of tabs with just blank pages. I launched Firefox again but it now has changed my homepage and redirecting me to some other page. My Avast antivirus could not detect any virus so I'm thinking of installing Avira to see if it can delete the virus. Need insights in Avira blank virus. I’m still on Windows XP 64 bit. Thanks.
