STR: 1. Open a page with a large textarea that extends off screen, such as https://en.wikipedia.org/w/index.php?title=Mozilla&action=submit#editform 2. Focus the textarea and scroll up and down using the arrow keys. 3. See that Gecko scrolls the page as the cursor hits the end of the screen before the end of the textarea. 4. Now move your cursor around the textarea using the HOME, END, PAGEUP, and PAGEDOWN keyboard shortcuts. RESULT: The cursor moves off screen, but the page does not scroll. Chrome and Safari scroll the page so that the new cursor position is vertically centered on screen.
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