Multiple copies of firefox open up and PC gets stuck a lot.

Have ran :
AVG
Esset online scanner
Kaspersky scanner
TDS killer
Malware bytes
Superantispyware

(system restore was off)

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 20:49:19, on 29/10/2012
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\PROGRA~1\AVG\AVG2013\avgrsx.exe
C:\Program Files\AVG\AVG2013\avgcsrvx.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\COMODO\COMODO Internet Security\cmdagent.exe
C:\WINDOWS\system32\svchost.exe
c:\Program Files\Microsoft Security Client\MsMpEng.exe
C:\Program Files\WIDCOMM\Bluetooth Software\bin\btwdins.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\SUPERAntiSpyware\SASCORE.EXE
C:\Program Files\AVG\AVG2013\avgidsagent.exe
C:\Program Files\AVG\AVG2013\avgwdsvc.exe
C:\Program Files\Java\jre7\bin\jqs.exe
C:\Program Files\Kaspersky Lab\Kaspersky Security Scan 2.0\kss.exe
C:\Program Files\Common Files\PC Tools\sMonitor\StartManSvc.exe
C:\Program Files\AVG\AVG2013\avgnsx.exe
C:\Program Files\AVG\AVG2013\avgemcx.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Yahoo!\SoftwareUpdate\YahooAUService.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\PC Connectivity Solution\ServiceLayer.exe
C:\WINDOWS\system32\userinit.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\PC Connectivity Solution\Transports\NclUSBSrv.exe
C:\Program Files\COMODO\COMODO Internet Security\cfp.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
O1 - Hosts: 127.94.0.1 client.openvpn.net
O1 - Hosts: 127.94.0.1 client.openvpn.net
O1 - Hosts: 127.94.0.2 openvpn-client.us-ca-sj-001.privatetunnel.com
O2 - BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - (no file)
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre7\bin\ssv.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre7\bin\jp2ssv.dll
O2 - BHO: (no name) - {FDAD4DA1-61A2-4FD8-9C17-86F7AC245081} - (no file)
O4 - HKLM\..\Run: [COMODO Internet Security] "C:\Program Files\COMODO\COMODO Internet Security\cfp.exe" -h
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\Run: [DWQueuedReporting] "c:\PROGRA~1\COMMON~1\MICROS~1\DW\dwtrig20.exe" -t (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\RunOnce: [nltide_3] rundll32 advpack.dll,LaunchINFSectionEx nLite.inf,C,,4,N (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - HKUS\.DEFAULT\..\RunOnce: [nltide_3] rundll32 advpack.dll,LaunchINFSectionEx nLite.inf,C,,4,N (User 'Default user')
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre7\bin\jp2iexp.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre7\bin\jp2iexp.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\OFFICE11\REFIEBAR.DLL
O9 - Extra button: @btrez.dll,-4015 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O9 - Extra 'Tools' menuitem: @btrez.dll,-12650 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O16 - DPF: {4B54A9DE-EF1C-4EBE-A328-7C28EA3B433A} (Bitdefender QuickScan Control) - http://quickscan.bitdefender.com/qsax/qsax.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{BA2EB558-B9CB-4332-A2C6-86E44F10667E}: NameServer = 8.26.56.26,156.154.70.22
O17 - HKLM\System\CCS\Services\Tcpip\..\{C0765EC0-3F9D-49EF-8DFA-F1DC52FE228A}: NameServer = 8.26.56.26,156.154.70.22
O20 - AppInit_DLLs: C:\WINDOWS\system32\guard32.dll
O23 - Service: SAS Core Service (!SASCORE) - SUPERAntiSpyware.com - C:\Program Files\SUPERAntiSpyware\SASCORE.EXE
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\WINDOWS\system32\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: AVGIDSAgent - AVG Technologies CZ, s.r.o. - C:\Program Files\AVG\AVG2013\avgidsagent.exe
O23 - Service: AVG WatchDog (avgwd) - AVG Technologies CZ, s.r.o. - C:\Program Files\AVG\AVG2013\avgwdsvc.exe
O23 - Service: Bluetooth Service (btwdins) - Broadcom Corporation. - C:\Program Files\WIDCOMM\Bluetooth Software\bin\btwdins.exe
O23 - Service: COMODO Internet Security Helper Service (cmdAgent) - COMODO - C:\Program Files\COMODO\COMODO Internet Security\cmdagent.exe
O23 - Service: Google Update Service (gupdate) (gupdate) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: Google Update Service (gupdatem) (gupdatem) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Oracle Corporation - C:\Program Files\Java\jre7\bin\jqs.exe
O23 - Service: Kaspersky Security Scan Service (KSS) - Kaspersky Lab ZAO - C:\Program Files\Kaspersky Lab\Kaspersky Security Scan 2.0\kss.exe
O23 - Service: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Program Files\Mozilla Maintenance Service\maintenanceservice.exe
O23 - Service: PC Tools Startup and Shutdown Monitor service (PCToolsSSDMonitorSvc) - PC Tools - C:\Program Files\Common Files\PC Tools\sMonitor\StartManSvc.exe
O23 - Service: ServiceLayer - Nokia. - C:\Program Files\PC Connectivity Solution\ServiceLayer.exe
O23 - Service: Yahoo! Updater (YahooAUService) - Yahoo! Inc. - C:\Program Files\Yahoo!\SoftwareUpdate\YahooAUService.exe
O24 - Desktop Component AutorunsDisabled: (no name) - (no file)

--
End of file - 7171 bytes

Why do you need so many AV products running at the same time?

C:\PROGRA~1\AVG\AVG2013\avgrsx.exe
C:\Program Files\AVG\AVG2013\avgcsrvx.exe
C:\Program Files\COMODO\COMODO Internet Security\cmdagent.exe
c:\Program Files\Microsoft Security Client\MsMpEng.exe
C:\Program Files\SUPERAntiSpyware\SASCORE.EXE
C:\Program Files\AVG\AVG2013\avgidsagent.exe
C:\Program Files\AVG\AVG2013\avgwdsvc.exe
C:\Program Files\Kaspersky Lab\Kaspersky Security Scan 2.0\kss.exe
C:\Program Files\AVG\AVG2013\avgnsx.exe
C:\Program Files\AVG\AVG2013\avgemcx.exe
C:\Program Files\COMODO\COMODO Internet Security\cfp.exe

Issues
Only one of them should be providing real-time scanning and firewall duties.

The rest should be restricted to on-demand scanning like doing right-click on a file, then scan with....

What happens if you open firefox in safe-mode?
In recent versions, this is help->restart with addons disabled

1.I was only using Microsoft Essentials
prior to the suspect-infection.The
many AV were installed as per the
forum guidelines above,though I
added a few more extra.

2.Thanks Salem safe mode helped.
The reason was plugins.
I had to disable all of the
plugins.I guess I will have to
enable them as and when
needed,maybe find the faulty
plugin hmmm,All add ons were
disabled(had just two)

3.Have uninstalled most of the AV.
except AVG along with COMODO HIPS Firewall.

I had to unistall AVG ,as my PC was getting stuck a lot.
had read somewhere that AVG and Comodo may conflict.

well works now.(after uninstalling AVG)

Thanks you all.

Addon's and some inhibitors in mozila start hindering web page. SO avoid such addon's

Firefox was one of the best browser some month ago when it was new.
But no there are so many updates for Firefox that it has become hang all the way.