The html <select> tag (as on the bugzilla bug entry page) does not scroll with the scroll bar or by arrow keys. It can be adjusted by clicking and dragging up and down within the list itself but it is difficult to set since it scrolls so quickly. This control works fine on Windows.
Reassigning to Kevin.
Pierre, this is a Mac specific bug so I am reassigning to you.
*** This bug has been marked as a duplicate of 5551 ***
Moving all Widget Set bugs, past and present, to new HTML Form Controls component per request from karnaze. Widget Set component will be retired shortly.