Are browser plug-ins security risks?

"Giorgio, I'm not aware of any particular issues, but no one has released bug-free code yet, and I'll bet my career that NoScript is no different. Every security protection product falls under the same security threats and problems as any other software, sometimes more so."

Saying something poses "risks" without quantifying those risks or weighing them against the benefits of the software is a bit disingenuous. It's as if a food critic said, "Chez jgfoot's food tastes good, at the same time it comes with health dangers," and then when pressed protested that all he was saying was that the perfect food has not been invented yet.