What is on those windows? Ads? Info? Are they from the website you were on at the time? How often does this happen?

Hi Usually advertising, broadband deals or cloud storage etc Usually triggered by clicking a link so probably a revenue click by the site I am using Happens everytime I do not think it's a security risk and I have never seen any attempted malevolent action, just annoying unsolicited advertising I always have ABP blocker and have tried other add-ons without success so wondering if there is a simple setting I have missed somewhere Thanks TW

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Forum; Adblock Plus Homepage {web link}