Firefox 3.0 is about ready for its gallop out of the gate. I test rode a pre-release version and it was lean and fast - but scratched it only because a few of my favorite add-ons weren't compatible yet.
I was also reminded of a post from a few years ago:
"There are more than 63 million baby boomers and 25 million senior citizens online, and Mozilla figures the best way to reach them is for their more tech-savvy kids or relatives to install Firefox for them."
Do you think their antediluvian attitudes have changed since then? Probably not.