Thank you so much for this input! I will address your concerns and questions one-by-one:
1. Sharing from Info Page: I apologize upfront, but I'm a little confused as to why you want to share this page by going to the URL > Info Page versus going to the URL > using the Share button. Let me know if I'm missing something there!
2. Seeing which friends Liked a page: You should be able to use the Info page to tell which friends Liked it. Are you not seeing that Info Page data?
3. Shares page: I was able to reproduce this "Mark as Read" problem in FF. I will be sure Engineering knows the "Mark as Read" feature needs frequent refresh in FF and that is an issue. (FYI the "Reply to Share" button not working issues is known and we are working on that fix.)
Re: display on the page -- that's a little bit more difficult for technical reasons because we are loading a lot of information on the page and having to pull it all from the database. But I will most definitely bring it up to Design.
Thank you again for all of this, Alec!
(P.S. What's your username?)