Frankly I'm not convinced. I just went to the link you provided http://switch2firefox.com/ and read through the 10 reasons to switch and what I read doesn't seem like it's really any/much better than IE.

1) I have a cable internet connection which I understand can be up to 100 times faster than regular dial-up and my web pages open almost instantaneously. 2) I have a pop-up blocker that works great. 3) I can search very quickly going to Google or Yahoo. 4) I can clear my cookies quickly and I don't seem to have any other actions that annoy me. 5) I can save or bookmark any page addresses in my Favorites and go them very quickly and easily. 6) I don't use keyboard shortcuts - I do almost everything with the mouse. My browsing is very fast and I don't have annoying lock-ups. 7) I don't really use the toolbars for browsing, so customizing doesn't really apply. I don't need a theme. 8) I don't download very much and with cable it's very, very fast anyway. 9) I'm not sure what that all means, so I guess it doesn't apply. 10) There was nothing for me to set up - I use IE straight out of the box. I use a 21" monitor - not much need to have more space for the pages to be bigger.

I guess I would really have to see it and use it, but by the descriptions given, it's like comparing a Cadillac to a Lincoln - some things are a little different here and there, but basically the same overall.

Ok - let me first answer your questions.
Yes, my pop-up blocker is from a third party and was included in my internet protection software and subscription.
No, I can't delete my cookies with two clicks - it takes three.

As for your responses - I will have to admit that you are much more focused and detailed about using your computer and the internet than I am. It is part of your life and livelihood - not as much mine except for the graphics I do, but that doesn't include the internet. My use of the internet is mostly for pleasure and in a very casual nature. I am on the internet everyday, but mostly checking e-bay auctions or to find something I need or want for my car or motorcycle or other collections or reading your blog.

Let me explain it this way -
You own a bicycle - correct? What kind of bike is it and is it a very expensive one with high tech components and is made of very light weight, but very strong materials? I may certainly be wrong, but I would guess not, as it is probably used mostly for commuting and not for any competitive efforts. I was a bicycle racer for 15 years and own 7 bicycles with three of them purely for racing. I raced on the road, the track and off road. To me the type of bike I had and the equipment for it were very important as they needed to be of racing quality to hold up to the rigors of a race, plus be comfortable and built just for me.

In comparison to using the internet - you are the racer and I'm the commuter. At first glance you would most likely look at my bikes and not notice any differences unless I pointed them out to you and you actually rode them. Even then you might not notice anything different unless you really rode aggressively. The differences might only be subtle, but very important to me as are the differences between IE and Firefox to you. It just seems that in the brief descriptions I read I didn't see anything other than subtle differences and probably most of them I wouldn't notice anyway with how I use the internet.

I suppose one day I will give it a try, but as I stated earlier, I'm not convinced at this time. Maybe if I saw someone else use it, then I would have a better understanding, just as it was when I was thinking about getting my first racing bike - I needed to see others ride and ride their bikes.

BTW - I probably wouldn't take the Prius as I think they are pretty ugly and just not for me.