There is some bug related to https://www.sciencedirect.com website. Everytime I visit it I am forced to disable Grammarly add-on, because of a message saying that the add-on is slowing down the website and because of a dramatical increase of the CPU load. Please fix this.
Firefox and Grammarly are not a good marriage. I am going back to Chrome, it is better, works with no issues. Firefox is missing features. To see the mistakes I need to click and get a new window, while in Chrome it is fluently showing me the first level of errors.