New on the trunk on April 17th, 2011. It's number #3 overall (browser and plugins) for yesterday. Signature gfxMixedFontFamily::ReplaceFontEntry(gfxFontEntry*, gfxFontEntry*) UUID ad46b92b-5478-4062-bb9f-755902110419 Time 2011-04-19 08:57:07.279061 Uptime 1263 Install Age 77882 seconds (21.6 hours) since version was first installed. Product Firefox Version 6.0a1 Build ID 20110418030544 Branch 2.2 OS Windows NT OS Version 6.1.7600 CPU x86 CPU Info GenuineIntel family 6 model 15 stepping 13 Crash Reason EXCEPTION_ACCESS_VIOLATION_READ Crash Address 0x3 User Comments App Notes AdapterVendorID: 8086, AdapterDeviceID: 2a12, AdapterDriverVersion: 8.15.10.1930 D3D10 Layers? D3D10 Layers- D3D9 Layers? D3D9 Layers+ Processor Notes INFO: This record is a replacement for a previous record with the same uuid EMCheckCompatibility False Frame Module Signature [Expand] Source 0 xul.dll gfxMixedFontFamily::ReplaceFontEntry obj-firefox/dist/include/gfxUserFontSet.h:102 1 xul.dll nsUserFontSet::ReplaceFontEntry layout/style/nsFontFaceLoader.cpp:686 2 xul.dll gfxUserFontSet::OnLoadComplete gfx/thebes/gfxUserFontSet.cpp:564 3 xul.dll nsFontFaceLoader::OnStreamComplete layout/style/nsFontFaceLoader.cpp:228 Crash Reports: https://crash-stats.mozilla.com/report/list?product=Firefox&branch=2.2&platform=windows&build_id=20110418030544&query_search=signature&query_type=exact&query=&date=04%2F19%2F2011%2010%3A28%3A36&range_value=30&range_unit=days&hang_type=any&process_type=any&plugin_field=&plugin_query_type=&plugin_query=&do_query=1&admin=&signature=gfxMixedFontFamily%3A%3AReplaceFontEntry%28gfxFontEntry*%2C%20gfxFontEntry*%29

Regression from bug 633299?