* I managed to fix my top bar issue within minutes of my post. Don't know why, but I decided to add a skin to my Firefox ui - this fixed my issue 100% it seems, I am not getting the error at all anymore
I am currently running Win10 Dev preview full fledged on a daily work machine. Off topic, Win 10 works great except for a few USB bugs not allowing me to format USB drives.
My usage is not as high as im reading. But a lot of my usage comes from Adblock. I have 5 browser windows open, with about 5-10 tabs each, im currently @ 760mb on Win 10.
A nice bug I get is from Firebug. When I am debugging a site, and I try to hover over my Taskbar icons to grab a new window, it flashes for about 2 seconds on whatever im hovering, and I have to try again, the second try usually leaves my taskbar windows open. If I close Firebug, this problem stops.
I also notice when I run flash (I stream mixtapes from datpiff.com), my usage goes sky high. I have been trying some debug options in about:config, and I think I have knocked the usage down by modifying a few lines.
Also another bug I experience on Win10 with Firefox is my top bar will completely disappear, I have to alt+F4 to close out Firefox and re-open. Maybe Firefox 33 will fix some of these issues.