Please post the last 5 crash reports here.

Bug report shows memory use is a bit high

Total Virtual Memory 4294836224

Available Virtual Memory 3619356672

System Memory Use Percentage 68

Available Page File 5578661888

Available Physical Memory 1350512640

https://bugzilla.mozilla.org/show_bug.cgi?id=1023239 NEW --- crashes in libinject2.dll, libredir2.dll and nptnt2.dll (V-Bates)

That other crash report talks about add-ware. Do you have "V-Bates"

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:

• Microsoft Safety Scanner
• MalwareBytes' Anti-Malware
• TDSSKiller - AntiRootkit Utility
• Hitman Pro
• ESET Online Scanner

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.

Did this fix your problems? Please report back to us!

Last 5 crash reports:

bp-a4efe672-23da-48bc-97a7-f6bcb2140629 bp-690aa4df-fae4-4778-9982-759942140629 bp-250c5635-8718-4282-8e9d-0ece42140629 bp-77732e4f-3ca3-441e-89bc-acf162140629 bp-63beef00-b430-4d4b-b238-5e8ec2140629

The crashing DLL "libinject2.dll" definitely sounds viral. Hopefully the cleanup tools listed above will take care of it.

Looks like a V-Bates infection: Firefox 30.0 Crash Report [@ libinject2.dll@0x169fd ]

You can consider to attach the libinject2.dll file to the bug report.

• bug 1023239 - crashes in libinject2.dll, libredir2.dll and nptnt2.dll (V-Bates)

• [/forums/contributors/710406]

It may also be useful if you paste into your post the details from the cleanup tools.

Other files also look suspicious in addition to libinject2.dll

1. libredir2.dll
2. libapi2hook.dll
3. libwinhook.dll

The 1st is directly involved in the crashing thread, and all are unidentified by debug names or versions in your report.