Changing Gmail Settings
GMail can show a minimum of 25 messages on the screen at once. 25 is too tall for me, because I rarely have that many conversations going on at the same time. It turns out that GMail doesn’t validate that value in the settings to be one of 25, 50, or 100, the GMail options for that field. Using the DOM Inspector in Firefox, find the “Maximum page size” drop down, and change the value attribute on the selected option to be something else, say 15. Click Save Changes and GMail will gladly take your new value.
