1. Resetting the browser in question?
2. Malware scans with Grif's help at http://www.cnet.com/forums/discussions/how-to-remove-pup-option-603542/#post-f742c795-5881-433b-a29b-6d758efe5cd3
3. MAYBE it's as it should be. Today's browsers sync, prefetch recent content for speed and may check for FAVICON changes on startup. There may be nothing wrong here except the idea that an app should launch and then do nothing.
my new pc is having this problem for a while now , its the same with any browser , 40%+ cpu usage on start up without the browser or any tabs being open , might be a malware , i have searched for the solution of this problem and so far i have found zero answers , any reply is very appreciated .