For Mac OS users, there is a system setting that may not allow you to tab onto several types of elements in a web page. To change this setting:
Rachel Green - Administrator
Natalie Antuofermo
Christopher Colesanti
Vincent Falivene
Daniel Ferrick
Brendan Junkins
Margaret Kelly
Kevin Kennedy
Michael Maschio
David Shotwell
Kristin Wendling
Patrice Williams
Cynthia Vitere