Firefox 10.0.2 frequently will not close

While the browser closes physically, it does not close memory-wise. I have to keep going into Task Manger and terminating the process.

Win 7 x64 Ultimate
2GB RAM
Core 2 Duo 1.86Ghz
Starting today, following a few other upgrades Java, Windows etc. as well as 10.0.2 from 10.0.1. I'm finding that the memory requirements has sky rocketed to 700MB of RAM (Working set memory) with only a couple of simple web pages.
I do have 20 or so add-ons and I've removed the worst offender, the others are Ad-Block, TACO etc.
And it just won't close, the programme closes but in Task Manager its using 50+ of CPU and only very slowly bringing its memory requirements down this is lasting 20+ minutes again I have to kill it.

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Start Firefox in [[Safe Mode]] to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
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*https://support.mozilla.com/kb/Safe+Mode
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i visit the same page and got the same message except the popup blocker was blocking the sign in page from loading.
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When I publish my captivate2 program to LMS and then run the
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Did you set the "Project end" option (in the Project
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Hallelujah, finally disabled OOPP. I use Firefox 9.0.1 and will not upgrade to anything that ignores my settings. Been looking for this info for years!

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It's truly sad. I switched to Firefox because it was the best browser. But Firefox has been backsliding horribly since around 2.0, and the other browsers seem to be in about the same boat. Firefox IS still the best browser - but only if you use an ancient, unsupported version. That's a big problem.

Using an obsolete version released [http://www.mozilla.org/firefox/9.0.1/releasenotes/ December 11th 2011] is the exact definition of downgrading. It exposes your system to all the security vulnerabilities that have been fixed since then.
* https://www.mozilla.org/security/known-vulnerabilities/firefox.html
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* [http://www.howtogeek.com/51807/how-to-create-and-use-global-system-environment-variables/ How to Use Global System Environment Variables | How-To Geek]

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and 
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Firefox 10.0.2 frequently will not close

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