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I downloaded version 4.0.1 and it crashed my system- my Norton no longer works and Firefox browser won't open. I did system restore which did not fix it. I tried downloading 4.0.1 again, it freezes when it tries to open "Checking add-on compatibility".

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I downloaded version 4.0.1 and it crashed my system, my Norton no longer works and the Mozilla Firefox browser won't open. I did a system restore, which did not fix it. I tried downloading 4.0.1 again, it freezes when it tries to open "Checking add-on compatibility". What the heck is going on??

I downloaded version 4.0.1 and it crashed my system, my Norton no longer works and the Mozilla Firefox browser won't open. I did a system restore, which did not fix it. I tried downloading 4.0.1 again, it freezes when it tries to open "Checking add-on compatibility". What the heck is going on??

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When I downloaded new stupid version causing crash my system My Norton gone after 4 h struggling finally I got it back but only protection I lost my identity safe data witch is very important for me my password can not be verify and I can not fix it I'm so mad I want old version back