Mouse goes crazy only when brower is open. never had a problem in all the years til now! .

Don't know what to do. Tried all other solutions on web

Hi bythejerseyshore,
This is not an expected Firefox feature :-/
I would recommend running a malware scan. Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.
You can try these free programs to scan for malware, which work with your existing antivirus software:
* [http://www.microsoft.com/security/scanner/default.aspx Microsoft Safety Scanner]
* [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware]
* [http://support.kaspersky.com/faq/?qid=208283363 TDSSKiller - AntiRootkit Utility]
* [http://www.surfright.nl/en/hitmanpro/ Hitman Pro]
* [http://www.eset.com/us/online-scanner/ ESET Online Scanner]
[http://windows.microsoft.com/MSE Microsoft Security Essentials] is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.
Further information can be found in the [[Troubleshoot Firefox issues caused by malware]] article.
It may also be the mouse driver or Java. Please make sure all your exensions are updated. Check out plugincheck [http://www.mozilla.org/en-US/plugincheck/]

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Try:
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Operating System
MS Windows 7 Home Premium 64-bit SP1
CPU
Intel Core i7 720QM @ 1.60GHz 43 °C
Clarksfield 45nm Technology
RAM
4.0GB Dual-Channel DDR3 @ 532MHz (7-7-7-20)
Motherboard
Alienware (CPU 1)
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Generic PnP Monitor (1440x900@60Hz)
ATI Mobility Radeon HD 5870
Hard Drives
244GB Seagate ST9250410AS (SATA) 34 °C
Optical Drives
HL-DT-ST DVD+-RW GA31N
Audio
ATI High Definition Audio Device
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* Also see [[Websites don't load - troubleshoot and fix error messages]]
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OR
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Mouse goes crazy only when brower is open. never had a problem in all the years til now! .

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