Yeah...the blog in chrome will have the red line through the https indicating mixed content...
Essentially, somewhere there is something that is not https... (often, elsewhere it can be things like images.)
I hate it in IE when this happens because you get a popup that is worded back to front, and I always click the wrong button...meaning that half the stuff is missing...
David, that is your FF browser addressbar when you are viewing the image
Logos' image ends at the top of the yellow bar, which is a chrome thing.