Only in Firefox and Palemoon am I getting a condition where thumbnail images are appearing off the web page (to the right) as shown in the attached image. I don't get this problem in any other major browser i.e. Chrome/IE/Opera/Safarai so I'm assuming that the issue will be specific to Mozilla? I have also started Firefox in safe mode several times, I have turned off hardware acceleration, I have checked that all my plugins are uptodate and also checked preferences on the about:config page, and have exhausted myself in trying to workout what could be causing this problem. Look forward to any other suggestions or possible fixes.