I use Mozilla always have and use it with windows 10 . last week I could not get on the internet using it so I ended up uninstalling it. then reinstalling it. I did this 7 times and all I kept getting was while it was installing was an older version of firefox was running and did I want to shut it down. I clicked on shut it down and tried again and kept getting same message. I have uninstalled it again checked everywhere to make sure there was nothing running and the same thing happened again.. I was hoping someone knew what else I can do to fix my problem?