I agree with the folks on that external site. Sure Mozilla hosted files but they are also built nightly and updated sometimes. The problem stems whenever another 3-party or website gives a review of the package and offers you to download from their site instead of the author. In fact, you have several 3-parties who give you the option to download from the publisher's site rather than theres....mostly for more up-to-date versions. What bothers me also is the fact, you find 300 source IP's on a file sharing network downloading Trojan baited software packages. If you thought you downloaded a 0-day movie but instead it turns out to be porno or an movie of an advertisement then you know what's up.