use a proper title="" for the save button in the preferences, for accessability with screen readers
$wgOut->addHTML( "
<div id='prefsubmit'>
<div>
- <input type='submit' name='wpSaveprefs' class='btnSavePrefs' value=\"" . wfMsg( 'saveprefs' ) . "\" accesskey=\"".
- wfMsg('accesskey-save')."\" title=\"[alt-".wfMsg('accesskey-save')."]\" />
- <input type='submit' name='wpReset' value=\"" . wfMsg( 'resetprefs' ) . "\" />
+ <input type='submit' name='wpSaveprefs' class='btnSavePrefs' value=\"" . wfMsgHtml( 'saveprefs' ) . "\" accesskey=\"".
+ wfMsgHtml('accesskey-save')."\" title=\"".wfMsgHtml('tooltip-save')."\" />
+ <input type='submit' name='wpReset' value=\"" . wfMsgHtml( 'resetprefs' ) . "\" />
</div>
</div>