A harder and apparently quite common issue. There is a very annoying gambling popup which opens when I use Chrome or Firefox. At the bottom right there is a group of linked icons. I have not tested them as I don't trust the page. I can return to an open page by tapping the right arrow. What Have I tried? First checked settings applications, and found nothing unusual Then scanned the system with Avast antivirus and Malwarebytes. Also installed an ad blocker, then a popup blocker, both of which promised to remove all popups.. No malware or adware was detected and the blockers didn't block. Is this a virus or pup? I try to be careful with the apps I install, going through Google play store if possible. Whilst looking for a solution to this issue I read the claim that a lot of apps obtained through Google have pups. I have actually spent several hours on line trying to find a solution to this issue. If after a bit longer the problem persists, I will rest the device to factory settings, I would prefer to avoid that, but it will remove all third party software. Thank you in advance to whoever can sort this.