Ad Block Pro and “No Script” plug-ins will take care of 99% of these issues.
It may take a little while to make sure you arent disabling useful features on websites you use if you enable both, but once you do, you will totally not notice them working.
Many conservative sites are infested with popups, and all manner of annoying ad gimmicks, though. So it really isnt the FR poster’s fault. Our side just cant code a webpage without popups and annoying filler it seems.
(another firefox addon, tho I use it on PaleMoon .. FF can piss off)