Making sure the commit button is the first button in the form.

browserid/static/dialog/views/bottom-addemail.ejs

-  <button id="back">Go Back</button>
   <button id="addemail_button" class="righty action submit">Add Email</button>
   <button id="cancel" class="righty">Cancel</button>
+  <button id="back">Go Back</button>

browserid/static/dialog/views/bottom.ejs

-  <button id="back">Go Back</button>
   <button id="submit" class="righty action submit">Sign In</button>
   <button id="cancel" class="righty">Cancel</button>
+  <button id="back">Go Back</button>