open safemac.co in safari, is it adware? I'm new to macOS and Safari, while surfing, occasionally when I click on white page (empty screen, no links, etc) a new tab to a strange url opens, it redirects multiple times, then forwards to safemac.co.

I think it's an adware.. How to get rid of this?

Just happened again, redirected to this url:
http://securemacfix.com/landings/197/?affid=mzb_349.40938911.1480466987.1111.mzb&amp;utm_source=prpllr&amp;utm_medium=cpm&amp;utm_campaign=mk_prpllr_wl_rmnt_ww&amp;utm_term=&amp;utm_content=&amp;userDefiner=mzb_2952&amp;alert=10&amp;trt=29_3121511156&amp;tid_ext=814559
It seems because of Awesome Screenshot Extension I have installed on Google Chrome Here says it's a malware.

I installed Malwarebytes Anti-Malware on macOS and scanned system, it found Adware.Awesome Screenshot then removed it. Everything seems Ok after a restart...