You will need to install a user script manager extension to install this script.
What does this script do?
To save time and to load quickly, this script pulls all the ranks at most once per day. After it is run, it saves the ranks. Currently I have this set up to only fetch the ranks for the QB, WR, RB, TE, DEF, and K positions (no defensive players). The reason for this is because these positions are the most important and it keeps the page load times to a minimum. A lot of leagues don't even have Defensive players. If you would really want a version that has defensive players, let me know and I'll quickly send you a custom version.
The script currently only works on the matchup pages. Script should provide stats on more pages now, not just Matchup pages
If there is anything wrong with this script or you have some suggestions, feel free to let me know.