Press F2 to scroll to an empty text box and focus it
Someone asked for this on Reddit. It finds all textareas and text input boxes and scrolls to them when pressing the F2 key. It applies to all web sites.
Note: It doesn't cycle through them...it will simply stop at the first empty box it finds and focus it. Once you add some text, press F2 again to find the next box. Maybe in the future I'll add cycling.
