Bookmark in webpage

First Try Opinion: This add-on was something that I needed, as I do a lot of online reading, both on my PC and mobile. However, many times on mobile, I lose me place of reading because when the page refreshes, I end up all the way at the beginning of the page. I THOUGHT this add-on was answer to that issue, as the pin works in taking me back to where I was prior... Only, I tested out if it could handle page refreshes... only to learn that the pins are removed if that happens. Meaning, that when I'm out of my browser for too long, and my pages refresh upon coming back, the pin(s) I made will be gone, and I'm back to where I started. If the creator to do something to fix this, that would be great. If not... then this was a bust.