I recently upgraded to the new Firefox version, but now everytime I am online and redirect to a new page, that website stops loading and a ad will pop up instead. I can press "Skip this ad" to go back to the previous page but it's rather annoying since I have to once again go to the page I wanted (if I'm not taken to another ad). Also within the webpage, certain random words will become a link to a spam website with that related word. How do I fix this? I do have no-pop up checked, so that can't be it. Please help!