The images are not thumbnails, as they aren't links. This also happens with all images, not just the widest ones.
I was wondering if anybody else has noticed this problem or knows how it could be fixed? I've spent hours on google trying to solve it, but to no avail. I don't want my photos showing up as having worse quality than what they actually have!
EDIT: I found that when I use Opera instead of Firefox, the images appear as they should. I don't know if the problem is with all Firefoxes or just mine, hope it was just me!