Users explore alternatives to Internet Explorer – The Irish Times – Fri, Apr 30, 2010
“Mr Dockery also suggests that Firefox’s open source nature may end up being a double-edged sword, as malicious code could disguise itself as an add-on and be installed by an unwitting user.”

Utter nonsense. IE allows addons, no? Hard to see the relationsip, and I suspect Mr Ronnie Dockery of Microsoft Irelands knows it.