I haven't seen those on clean pages but I've had those on before on a few "content providers of questionable legality". What a lot of sites do is add a invisible box in front of the whole page which links to an advertisment pop up. Maybe one of the embeded advertisments is able to use that technique.
I don't think it's a virus or a rouge extention since it's happening on both your phone and PC. Maybe someone else might have a better Idea On 05/21/2018 12:02 PM, Rony Bill wrote: > Hello Friends, > > Off late I have observed that when visiting some websites (Clean ones), > especially where a form is to be filled, a spam advts tab opens in the > browser. It happens in Android as well as Ubuntu in Firefox. In my Ubuntu > laptop, I was on a sports shopping site and just when I clicked on Buy Now, > it opened a spam page, even playing an advt video. > > What is this new phenomenon happening? > > Regards, > Rony.
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