When will Firefox stop eating all my memory?

For the past few versions, Firefox has been a memory hog. I have done a fresh install of my entire OS (Windows 7) and Firefox, ran it with no plugins, and still have the problem. I've got my plugins installed now and it's not much worse than it was before. This is ridiculous. It regularly consumes up to 700+MB of memory and if I don't monitor it carefully, it will creep up to over 1.5GBs. Not even Photoshop is that obnoxious to me.
== This happened ==
Every time Firefox opened
== Ever since 3.x or so

Ok, I found the solution (for at least my boxes!) Yay!
The trouble is that Firefox changed the amount of HTTP connections it permits simultaneously from 30 (pre version 6) up to 256 for version 7. Each connection uses CPU and Memory!!!!!
I won't ponder why they did that, but the fix is easy:
Lower the max number of HTTP connections
In the Location bar, type about:config and press Enter.
The about:config "This might void your warranty!" warning page may appear. Click I'll be careful, I promise!, to continue to the about:config page.
In the Filter box at the top, type network.http.max-connections.
Double-click on the network.http.max-connections preference, the "Enter integer value" dialog box will open.
In the field, type 30 which was the default value in old versions of Firefox and click OK.
My version 7.0.1 firefox suddenly started working! Yay!

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