just found that the chmsee tool doesnt work well today. it should worked at the release version and failed when yum up2date.
check and filed a bug on this issue.
** (chmsee:17763): WARNING **: GECKO_UTILS >>> Couldn't find a compatible GRE!
** ERROR **: Initialize html render engine failed!
export GRE_HOME env before run the tool,
<pre class="brush:shell">$export GRE_HOME=/usr/lib/xulrunner-2/