I have had this problem for about a week - web pages with Google Adsense adds, when one certain ad appears on the page, it opens a new tab in Safari and takes me to it. Usually when I have read a line or two of news, suddenly there are women's sanitary advertisement instead of the text I was just reading. Some times 2 or 3 tabs pop up. I don't click it, don't even need to mouse-over it - but only when that particular add is on the page. I blocked the domain in the hosts file. The add still shows up on the page, and still opens a tab automatically, but now it just says page not found. Still very annoying! I searched for this online but can't find it. I also told Google Adsense settings that I don't want to see ads for women's sanitary products. It is most annoying - especially that I am just reading something and get interrupted several times a day usually. Is this some kind of malware? Or a new type of aggressive ad? Or a loophole in Safari? Mac OS X and safari are both updated to newest versions.