Patrice, I decided to do a test on my phone along with posting from this computer. When accessing the QB on the phone with no ad blocker, I got what I'd consider the 'normal' amount of ads around the postings and in between posts. When I accessed a thread with pictures, some had the pop up ad just below the picture and some did not. So I thought that it might be the method used for uploading pictures. I used a 16-page thread for the test to see if it was happening all throughout a thread.. From my computer, I posted a picture using the picture frame icon and then posted another picture using the Manage Attachments method. Then I pulled up those postings on my phone. The picture uploaded by the picture frame icon did not have a pop up ad. The picture uploaded using the Manage Attachments had the pop up ad. My phone is a Samsung Galaxy 7. The browser is not indicated, but Google suggests that my phone service uses Chrome. I hope this helps to shed some light on this issue.