You're from UK and your english... sucks. To sum it up: english, auto-updater, the CF start/uninstall would be a lot better if you'd search the registry for it's location, oh and remove the message after the splash screen. It's annoying. Talking 'bout the splash, consider making it close automatically after all the data is loaded (hints: no timer needed, no click event needed; just a picture and a little bit of code). Nice idea for the browser anyway.
P.S: Your program doesn't close successfully as I can see it in the Task Manager... (after I close it of course)