Flash player won't install on Dell with Mozilla Firefox version 33.0 for Yahoo 1.32. It does not matter what I try or even if I delete all old flash player files, folders etc. The download goes as far as the black box where it should be installing and just freezes there. I have pretty much tried everything to get it t0 install, including your troubleshooter. I also checked on Firefox and there is no available plug in download for the flash player. I even uninstalled and reinstalled Firefox and that will still not work. I tried to download using just Internet Explore 11 and that wont work either. It saves the file and I can make it run, but it goes directly to the black box fr Adobe flash player installation and is blank and will not go any further. help please!!!