Whenever the left column is shorter than the right column on my custom theme, the display isn't right in Firefox: the left column box doesn't extend all the way to the footer. I've looked at it for a long time, and I don't know if it's a problem with Firefox, but I certainly don't know how to fix it. It seems to work fine on the latest version of I.E.
Here is an example, compare the bottom of the two pages...
GOOD:
http://heroesonly.com/author/barbariany
BAD:
http://heroesonly.com/author/everett
Can anyone give me a hint as to what might be causing this?