You sir, win the prize for best definition of a cow I have ever heard
Except Firefox addons are not *necessary* to use any commonly accessed websites (AdBlock Plus and NoScript may be desirable, but not necessary).
Er, Flash? I'd say websites that are Flash-based or contain fairly large amounts of Flash content are "common"...
Try tracing back random pieces of modern technology to all of their component parts/materials, and all of those's component parts/materials, and so forth, with the components needed for manufacturing/refining along the way, and if any of those are consumable, trace those back.
Little bit off-topic but directly related to this, find the book The Pencil: A History of Design and Circumstance. It covers all the technology and industries that had to spring up in order to make and mass produce a simple pencil. Fascinating read.
I live in New Zealand, similar health system to Canada. I broke my pinky finger a few months ago, late-ish on a Saturday night - busy time for the drunks and so forth attending the emergency department. 45 minutes in and out, x-ray'd, splinted and with follow up appointment booked. A few weeks later I started seeing a hand therapist to make sure all the mobility came back, total of 6 visits.
No private health insurance, total cost to myself: $0
I travel to the states regularly for work (medical devices, so I see it from the inside as well) and carry a travel insurance card with at *all* times. I will not leave the hotel without it. The last thing I want is to fall down some stairs and break a leg, and then go through your healthcare system without insurance. The second to last thing is to go through your healthcare system at all - remember I see it from the inside as well. Not a great reputation for a country to have with it's visitors, really.
Just in case you haven't found it, try http://www.gog.com/
I'm currently reliving my childhood, to the detriment of my adulthood, but ah well, plenty of time to be old later. Also Steam has a large number of smaller indie titles as well as the time-consuming AAA titles, not least of which is the old LucasArts games, with more to come.
If you do something right once, someone will ask you to do it again.