My computor had been overly slow which was not normal when looking at processes running in task manager I found plugin-container.exe to be using alot of memory. I looked online and found that this was an update of firefox which was not essential, I then looked on my C:\ drive for the application and deleted it hoping this would solve the problem as I could not find it when looking at my firefox plugins. However now when I open firefox it quickly crashes, how can I reinstall this? Do I need to reinstall firefox completely or is there a more simple solution? I have done the firefox plugin check and it can find no problems.