So that you do not block the mining you can use this .js in your pages https://github.com/elprogramador/NoBlocker
you can congigure the message it shows when detecting a blocker for example as the No Coin Extension of chrome
I wanted to comment that I have developed an application to mine more optimally JSECoin. The problem was that by minimizing the browser window or changing the tab, the mining activity fell. My application keeps the activity at 100% even if it is minimized. It can also be put in hidden mode.
Step link from youtube