From April 23rd, 2018 to August 27th, 2020, 50% user give 5-star rating, 50% user give 3-star rating. for Pagemark for Chrome chrome extension.
Weekness/N.B.: You will NOT be able to tell which mark is currently on IF you have many marks, e.g. 3-4. Cannot delete a specific mark at any number/order.
Excellent, useful extension for Chrome.