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I have downloaded ff 4 and 4.1 a couples of times. It's not very fast. I went back to 3.6.17. I tried about.config. It doesn't come up. what happen?

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easygoingimp
easygoingimp
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I'm using a Toshiba laptop with I7 processor and windows 7 The older version of ff works very fast. ff 4.1. very slow.

I'm using a Toshiba laptop with I7 processor and windows 7 The older version of ff works very fast. ff 4.1. very slow.