Two problems with my Early 2011 MacBook Pro 15inch, 2.0Ghz

Hi guys,
so I got my old 2009 MBP replaced by a new Early 2011 one.
First problem with the new machine had to do with our alltime favorite: Flash player (at least I guess it had something to do with it)! I used the 10.3 beta which has its own tile in the sys preferences. When I used Firefox 4.0, Firefox caused the MBP to freeze... I had to shut down via power button. So I first tried to deinstall Flash and Firefox and reinstall the regular (not beta) version of Flash and Firefox. I had also all updates for Mac OS X installed, but no change... several complete system freezes later I decided to reinstall the whole OS. Since the reinstall I wasn't confronted with total system freezes anymore, but Firefox still hangs up sometimes and shows me the colored ball... but it gets back to normal after approx. 30 sec. Has anyone else experienced the same probs?
Now the second problem: Since the reinstall of the OS, my Airport always looses the connection to my WIFI. I use the computer and after a while I go away, and when I come back... no connection annymore.  When I wait until it finds my network again, it won't connect automatically and I have to reenter my networkkey. So I started to deactivate and reactivate Airport in these cases via the menubar entry and the it works again. But even if you stream a Flash video it looses the connection and it is driving me crazy right now.
I was so happy to get one of the new MBPs but now... I'm actually a bit annoyed. Firefox and Flash performance is pretty bad (probably software issue, but how do I know)... and a moody Airport... any suggestions?
thanks in advance...
seb

Does the laptop feel hot (if you know where the fans blow out, feel there, or around there on the casing)?
If so, then thats the reason why its freezing. And thats also usually because the fans aren't going fast enough, or doing its job well enough. Try downloading a fan speed monitor such as iStat. The fans max at 6,000 RPM i believe. And if its hot, and not around that, then thats a problem . For some reason, Flash heats up MacBook Pro's a lot, and it really bothers me.
Im a gamer, and cant play games either on it. Yet... i still love my MacBook Pro.

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    com.apple.driver.AppleHDAHardwareConfigDriver 267.0
    com.apple.driver.AGPM 100.14.37
    com.apple.driver.AppleTyMCEDriver 1.0.2d2
    com.apple.driver.AppleMikeyHIDDriver 124
    com.apple.driver.AppleHDA 267.0
    com.apple.iokit.IOBluetoothSerialManager 4.3.1f2
    com.apple.driver.AppleOSXWatchdog 1
    com.apple.driver.ApplePolicyControl 3.7.21
    com.apple.driver.AppleMikeyDriver 267.0
    com.apple.driver.AppleUpstreamUserClient 3.6.1
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    com.apple.iokit.IOUserEthernet 1.0.1
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    com.apple.driver.AppleIntelSNBGraphicsFB 10.0.0
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    com.apple.driver.SMCMotionSensor 3.0.4d1
    com.apple.driver.AppleSMCPDRC 1.0.0
    com.apple.driver.AppleSMCLMU 2.0.4d1
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    com.apple.driver.AppleLPC 1.7.3
    com.apple.kext.AMD6000Controller 1.2.8
    com.apple.driver.AppleHWAccess 1
    com.apple.driver.AppleHV 1
    com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
    com.apple.driver.AppleMuxControl 3.7.21
    com.apple.driver.AppleBacklight 170.4.12
    com.apple.driver.AppleMCCSControl 1.2.10
    com.apple.driver.AppleUSBTCButtons 240.2
    com.apple.driver.AppleUSBTCKeyEventDriver 240.2
    com.apple.driver.AppleUSBTCKeyboard 240.2
    com.apple.driver.AppleIRController 327.5
    com.apple.driver.CoreStorageFsck 471
    com.apple.driver.AppleFileSystemDriver 3.0.1
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
    com.apple.BootCache 35
    com.apple.iokit.SCSITaskUserClient 3.7.0
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    com.apple.iokit.IOAHCIBlockStorage 2.6.5
    com.apple.driver.AppleUSBHub 705.4.1
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    com.apple.driver.AppleSDXC 1.6.5
    com.apple.iokit.AppleBCM5701Ethernet 10.1.2b3
    com.apple.driver.AirPort.Brcm4360 901.19.10
    com.apple.driver.AppleFWOHCI 5.5.2
    com.apple.driver.AppleAHCIPort 3.0.7
    com.apple.driver.AppleUSBEHCI 705.4.14
    com.apple.driver.AppleUSBUHCI 656.4.1
    com.apple.driver.AppleSmartBatteryManager 161.0.0
    com.apple.driver.AppleACPIButtons 3.1
    com.apple.driver.AppleRTC 2.0
    com.apple.driver.AppleHPET 1.8
    com.apple.driver.AppleSMBIOS 2.1
    com.apple.driver.AppleACPIEC 3.1
    com.apple.driver.AppleAPIC 1.7
    com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0
    com.apple.nke.applicationfirewall 161
    com.apple.security.quarantine 3
    com.apple.security.TMSafetyNet 8
    com.apple.driver.AppleIntelCPUPowerManagement 218.0.0
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    com.apple.driver.DspFuncLib 267.0
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    com.apple.iokit.IOAudioFamily 200.6
    com.apple.vecLib.kext 1.2.0
    com.apple.iokit.IOSerialFamily 11
    com.apple.iokit.IOAcceleratorFamily2 156.4
    com.apple.iokit.IOSurface 97
    com.apple.driver.AppleThunderboltEDMSink 4.0.2
    com.apple.driver.AppleThunderboltDPOutAdapter 4.0.6
    com.apple.driver.AppleSMBusPCI 1.0.12d1
    com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.1f2
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    com.apple.kext.AMDSupport 1.2.8
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    com.apple.driver.AppleGraphicsControl 3.7.21
    com.apple.driver.AppleBacklightExpert 1.1.0
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    com.apple.driver.AppleUSBMultitouch 245.2
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    com.apple.driver.AppleUSBMergeNub 705.4.0
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    com.apple.iokit.IOReportFamily 31
    com.apple.driver.AppleFDEKeyStore 28.30
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    com.apple.kec.Libm 1
    com.apple.kec.pthread 1
    Model: MacBookPro8,2, BootROM MBP81.0047.B27, 4 processors, Intel Core i7, 2.2 GHz, 8 GB, SMC 1.69f4
    Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 512 MB
    Graphics: AMD Radeon HD 6750M, AMD Radeon HD 6750M, PCIe, 1024 MB
    Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1067 MHz, 0x0198, 0x393930353432382D3030352E4130324C4620
    Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1067 MHz, 0x0198, 0x393930353432382D3030352E4130324C4620
    AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.100.24)
    Bluetooth: Version 4.3.1f2 15015, 3 services, 27 devices, 1 incoming serial ports
    Network Service: Ethernet, Ethernet, en0
    Serial ATA Device: OWC Mercury Electra 6G SSD, 240.06 GB
    Serial ATA Device: MATSHITADVD-R   UJ-898
    USB Device: Hub
    USB Device: Apple Internal Keyboard / Trackpad
    USB Device: BRCM2070 Hub
    USB Device: Bluetooth USB Host Controller
    USB Device: FaceTime HD Camera (Built-in)
    USB Device: Hub
    USB Device: IR Receiver
    Thunderbolt Bus: MacBook Pro, Apple Inc., 22.1

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