Certainly an interesting idea, but I think you're raising the barrier to entry by not simply implementing this as a browser extension. By having to develop a completely separate browser you're wasting a lot of time and resources that could otherwise be used to achieve the goals of the project.
I also seriously doubt the willingness of most people to install yet another battery-guzzling Electron app.
I also seriously doubt the willingness of most people to install yet another battery-guzzling Electron app.