Last Friday Mozilla blocked one of Microsoft's sneaky addons that put end user security at stake.The addon,dubbed as ".NET Framework Assistant" and a plug-in named "Windows Presentation Foundation" -- have been blocked by Mozilla as a precautionary measure, said Mike Shaver, the company's head of engineering.These addons installed without any permission and may be manipulated by malicious users to code their way into the browser and infiltrate the system(Who knows a botnet may be well under a way..anyway?),even their Internet Explorer 8 had the same built in flaw.The addon was notable for its annoying removal and had been infiltrating firefox since Microsoft pushed them out with the .NET Framework 3.5 Service Pack 1 (SP1) update in February this year.Until or unless some registry hacking was employed,this addon was impossible to remove entirely.As the folks at Mozilla cant fix the software,the safest way they can go on with was to block it,which they already did on Friday. - X.E.R.O