Firefox 3.6's #36 topcrash appears to be caused by Trend Micro: http://crash-stats.mozilla.com/report/list?range_value=2&range_unit=weeks&signature=msvcr80.dll%400xf880&version=Firefox%3A3.6 For example: http://crash-stats.mozilla.com/report/index/7cf320d9-ab93-4d75-9065-833b82100124 0 msvcr80.dll msvcr80.dll@0xf880 1 @0x2e388df 2 ntdll.dll ntdll.dll@0x2dea2 3 KERNELBASE.dll KERNELBASE.dll@0x18b76 4 rpcrt4.dll rpcrt4.dll@0x1649b 5 tmufeng.dll tmufeng.dll@0x2bf24 6 tmufeng.dll tmufeng.dll@0x9980f 7 tmufeng.dll tmufeng.dll@0x2b6bf 8 tmufeng.dll tmufeng.dll@0x2bf78 9 nss3.dll pkix_PolicyChecker_CheckPolicyRecursive security/nss/lib/libpkix/pkix/checker/pkix_policychecker.c:1192 10 TMUFEWrapper.dll TMUFEWrapper.dll@0x7408 11 TMUFEWrapper.dll TMUFEWrapper.dll@0x13bf 12 TMUFEWrapper.dll TMUFEWrapper.dll@0x95ab 13 TMUFEWrapper.dll TMUFEWrapper.dll@0xaa5f 14 nss3.dll CERT_CompareAVA security/nss/lib/certdb/secname.c:546

It's #77 for Firefox 3.5.7. It affects all branches, I found crashes for 1.9.0 and 1.9.3 as well.

Ah, interesting. I filed this because I saw it in the 3.6 topcrash list and there was no bug number listed.

still running about about 600 crashes per day and it looks like its 100% Win6.1 (windows 7) Firefox 3.6.3,Win6.1. msvcr80.dll@0xf880,602,100% has anyone reached out to trend micro yet?

Where can I get this version (8.0.50727.492) of MSVCR80.DLL? In Windows 7? This may be same as bug 511756. So, I want to know whether this still occurs even if applying hotfix of bug 511756.

I don't see any references to that version number ( 8.0.50727.4927 ) listed on msdn In article http://support.microsoft.com/kb/971090 it appears 8.0.50727.4053 shipped as part of a security update last summer, so I guess 8.0.50727.492 must be something that shipped since then, and maybe as part of the windows 7 release last fall.

CCing Trend team

Hi All: I have checked the crash report in this case.some are related with Trend Micro Pro Toolbar, and Please apply hotfix of bug 511756. And most of other crash report. They are as below, from call stack, it does NOT seems from Trend Micro's modules, We think this kind of crash should be other questions, Please help to check it, Thanks! Frame Module Signature [Expand] Source 0 msvcr80.dll msvcr80.dll@0xf880 1 @0x1e15ea7 2 ntdll.dll RtlFreeHeap 3 KERNELBASE.dll GetFileAttributesW

thanks for your help Jerry. as soon as the module correlation reports come back on-line we will be able to check for correlations to other .dll's.

here is the addon correlation data. only 2 versions seem to be a problem. from 20100425*3.6.3*addons-with-versions.txt msvcr80.dll@0xf880|EXCEPTION_ACCESS_VIOLATION (740 crashes) 100% (737/740) vs. 1% (3318/230167) {22181a4d-af90-4ca3-a569-faed9118d6bc} (Trend Micro Toolbar, http://us.trendmicro.com/us/products/personal/internet-security-pro/index.html) 99% (733/740) vs. 1% (2627/230167) 1.6.0.1126 1% (4/740) vs. 0% (258/230167) 1.2.0.1073 0% (0/740) vs. 0% (2/230167) 1.1.0.1043 0% (0/740) vs. 0% (408/230167) 1.2.0.1093 0% (0/740) vs. 0% (7/230167) 1.2.0.1110 0% (0/740) vs. 0% (16/230167) 1.3.0.1020

The crash has gone away if the crash stats are correct.