Mozilla Firefox hanging up

I seem to be having issues with Mozilla Firefox. I think the issues revolve around the latest version, It will stop responding and do it several times in a row. I end up having to kill the process entirely from task manager. here's how it looks in the XML event log :
- <Event xmlns="Error">
- <System>
<Provider Name="Application Hang" />

<EventID Qualifiers="0">1002</EventID>

<Level>2</Level>

<Task>101</Task>

<Keywords>0x80000000000000</Keywords>

<TimeCreated SystemTime="2011-05-25T02:08:55.000000000Z" />

<EventRecordID>18692</EventRecordID>

<Channel>Application</Channel>

<Computer>Kaiachi-PC</Computer>

<Security />

</System>


- <EventData>
<Data>firefox.exe</Data>

<Data>2.0.1.4120</Data>

<Data>18e4</Data>

<Data>01cc1a808a97230c</Data>

<Data>47</Data>

<Data>C:\Program Files (x86)\Mozilla Firefox\firefox.exe</Data>

<Data>eeb8f124-8673-11e0-aae4-c80aa9120c42</Data>

<Binary>55006E006B006E006F0077006E0000000000</Binary>

</EventData>


</Event>