Hi,
There's a small bug with the [Default Font] & [Size] dropdowns in Firefox. Steps:
1) Highlight some text on the editor.
2) Click on [Default Font], and change the font to a different font.
3) Notice that the font in the selection has changed, but the font shown in the (now collapsed) [Default Font] box is... Default Font.
4) Click elsewhere (not within the selected text), and then click somewhere within the previously selected text.
5) Notice that the font shown in [Default Font] is correct.
Any ideas how I can solve this?