<presentation id="FirefoxHome">
<checkBox refId="FirefoxHome_Search">搜索</checkBox>
<checkBox refId="FirefoxHome_TopSites">热门网站</checkBox>
<presentation id="FirefoxHome">
<checkBox refId="FirefoxHome_Search">搜索</checkBox>
<checkBox refId="FirefoxHome_TopSites">热门网站</checkBox>