I am currently using Outpost and AVG Free which have been serving me quite well. However I am always looking to try new software especially when it comes to security for my pc. I, like alot of people have switched to Firefox and Thunderbird. In the past NIS has been strictly a M$ product. Does NIS 2005 work with Firefox and Thunderbird? Does things like the ad blocking work similar to Outposts ad blocking where it blocks ads through any browser and also ads in Instant Messengers for example I can block Yahoo's Instant Message ads in chat. Does NIS 2005 scan emails like AVG Free does? Those are some of the questions I was wondering about when switching/trying NIS 2005.