For several days I have been receiving pop up scams as illustrated in the first image attached. They repeat themselves every few minutes. The second image is what I received on the website listed at the bottom of the pop up - ''brnok. stoneheartseeker.top''. How do I stop them, please? Also, is there a legitimate connection between Mozilla Firefox and ''brnok.stoneheartseeker.top''? I'd much appreciate your help. Nicholas