Strange, I'm not having that kind of browser behavior on my end
Best get some anti-malware programs; download and install
MBAM, update its database after installing, then do a
Threat Scan (
which can run between 15-40mins, depending on what it'll find ) -- if it does find any, quarantine the items, and prompt to a reboot, the repeat Full Scan to flush out any leftovers (
this would take between an hour to two, depending on what it'll find )
Sidenote: Make sure if you do install MBAM, go to it's Settings menu, and under Detection and Protection that there's a checkmark on Scan for Rootkits and Scan within Archives; also under the General Settings that the Explorer context menu entry is set to Yes so you can scan any file using the right-click on your mouse/trackpad
It'll also help to manually check all your programs if they're up-to-date; an outdated program is prone to any infection these days