Some website always has pop up ad on the lower right corner. To remove it, simple:
Go to your browser's:
Settings
Site permissions
Notifications
Block > Add
type in the website which always gives you the pop up ad., such as:
that's all.
用上面的方法 各种网页浏览器都可以适用。 有问题可以在下面留言 或者发信息给我。祝成功 愉快。