Mac OS 10.8.5 using Firefox 26.0.
When I post photos lately they have been turning out huge, especially when compared to ones I've posted in the past. It fills the entire available area. I know how to change the size for an individual picture, but if I did something to permanently change the size, I don't know what it is. Below is one I posted in another thread to give an idea of what I'm talking about. This one doesn't look as big as others because it's at the top of the page and is restricted by the side bar. If the thread goes on then it fills up the entire page side to side in posts below the side bar.