I am not sure what to do about the following 3 third-party plugins. It appears that the Windows Presentation Foundation plugin "has a major security vulnerability that can be exploited by malicious websites as described in the Firefox Article "How to enable and disable Windows Presentation Foundation." It seems that the easiest way to deal with this plugin is to disable it via the add-ons manager. My question do the other two plugins pose security risks - should I disable them. I have tried to find additional information on all three plugins and cannot seem to ascertain whether they need to be updated or if, in fact, there are updates for these plugins. I am not sure if they are even compatible with Firefox, perhaps they been added to the Mozilla Add-ons block list. At any rate, any assistance would be greatly appreciated! The three plugins in question are: Microsoft Office 2003 Unkown ? Research Office plugin for Netscape Navigator plugin Windows Presentation Foundation Unknown ? Research (WPF) plugin for Mozilla Browsers plugin Google Update Unknown ? Research Google Update Thank you in advance. GAMKRTWCA