Yes. I can run entire 3D games.... ten times in the memory footprint of your average browser. Even fairly decent-looking ones, not your Doom or Quake!

And if we're talking about simple GUI apps, you can run them in 10 megabytes or maybe even less. It's cheating a bit as the OS libraries are already loaded - but they're loaded anyway if you use the browser too, so it's not like you can shave off of that.