How to get resize w/ firefox for certain members

[Aerojoe]

Hi all, I've been having this issue for a while and not on all my pc's, but I've been using firefox as my browser for a bit but on some of my pc's and only for certain members there pics come out ridiculously big and causes the text to do the same. This makes reading very tedious as I not only have to scroll down but left and right just to read the whole sentence. How do I get my pc to resize everything to fit the screen? some members who post quality pics don't cause this issue for me, on google chrome the resizing works perfectly but it's a slow browser imo. Anyone know how to fix this?