Don't enter polo via google search, if you digit "poloniex" on google, first website is poloniex.ru which is obv a scam, real polo is poloniex.com
This is not normal, you have malware. I would be very careful and do a re-install.
I saw that site when my friend gave us a warning on what is the polo phising site looks like and what is real. You can actually tell easily since the URL is different and theirs no security planted on it but their are several people has been caught by this so we should be carefull since and just reach the polo via url typing and do not search it on google since you gotta find the phising site result for your surfing on it.