The CPU will get close to 100% when viewing videos or when a web page uses a flash. This happens only when using Firefox. When I use IE the CPU only reaches 20% max. Does anyone knows what is causing this? http://postimg.org/image/y3lhiavfr/
Firefox is known to use a lot of CPU power, but 100% at all times is a bit high. Please list the plug ins you are using what type of video you are watching (youtube, flash, etc).
What's your cpu? if you're cpu is poor then it will probably use 100%. Nothing to worry about, but it shows that your cpu is bottlenecking your system due to using all of it's power to render the flash applications.