Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

firefox 21.0 crashes I attempt to open a page containing video

  • 6 replies
  • 5 have this problem
  • 3 views
  • Last reply by Grigs

more options

When ever I open any page containing a video, such as any youtube page my browser immediately closes and presents me with a crash report I believe this started happening after a firefox or adobe update a few weeks ago. The problem continues when Im in safe mode and Ive tried many suggested fixes including updating flash, reinstalling firefox, disabling hardware acceleration, checking for conflicting realplayer, editing my the flash cfg file, and so on but non of those had any effect and It's sad cause I know from looking though these forums and elsewhere that others are having the exact same problem and these solution aren't working for anyone.

I couldn't find any answers to the problem so I reverted to firefox 20.1 decided to wait for next update, as there seems to be a flash update a couple weeks. Somehow I ended up back on FF21.0 and so Im here again asking the same question before I re-revert. So here are the details again.

Im Post my reports and spec like this because non of these options; "automatically" "try these manual steps" or "Show details" work for me in my outdated IE which is the only working browser I have atm. The first report shows results with addons enabled and all my usual settings the second show results with in safe mode. As you can see the two are the same for the most part

The report: With addons enabled


AdapterDeviceID: 0x6719 AdapterVendorID: 0x1002 Add-ons: yesscript%40userstyles.org:1.9,optout%40google.com:1.5,foxyproxy%40eric.h.jung:4.2,adblockpopups%40jessehakanen.net:0.7,%7B73a6fe31-595d-460b-a920-fcc0f8843232%7D:2.6.6.2,%7B972ce4c6-7e08-4474-a285-3208198ce6fd%7D:21.0 AvailablePageFile: 4682809344 AvailablePhysicalMemory: 1420525568 AvailableVirtualMemory: 3792789504 BuildID: 20130511120803 CrashTime: 1370577662 EMCheckCompatibility: true Email: FramePoisonBase: 00000000f0de0000 FramePoisonSize: 65536 InstallTime: 1369263628 Notes: AdapterVendorID: 0x1002, AdapterDeviceID: 0x6719, AdapterSubsysID: 24611462, AdapterDriverVersion: 9.12.0.0 D2D? D2D+ DWrite? DWrite+ D3D10 Layers? D3D10 Layers+ ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox ReleaseChannel: release SecondsSinceLastCrash: 1109 StartupTime: 1370577654 SystemMemoryUsePercentage: 62 Theme: classic/1.0 Throttleable: 1 TotalVirtualMemory: 4294836224 URL: https://plus.google.com/u/0/_/notifications/frame?origin=http%3A%2F%2Fwww.youtube.com&source=yt&hl=en-US&jsh=m%3B%2F_%2Fscs%2Fabc-static%2F_%2Fjs%2Fk%3Dgapi.gapi.en.YwZcwvhQD7M.O%2Fm%3D__features__%2Fam%3DIA%2Frt%3Dj%2Fd%3D1%2Frs%3DAItRSTNqkRhMtkpSA0AbmH0iColYw_JJwg#pid=36&rpctoken=387582488&_methods=setNotificationWidgetSize%2CsetNotificationWidgetHeight%2CsetNotificationText%2ChideNotificationWidget%2CopenSharebox%2ConError%2C_ready%2C_close%2C_open%2C_resizeMe%2C_renderstart&id=I1_1370577662087&parent=http%3A%2F%2Fwww.youtube.com Vendor: Mozilla Version: 21.0 Winsock_LSP: MSAFD Tcpip [TCP/IP] : 2 : 1 : %SystemRoot%\system32\mswsock.dll

MSAFD Tcpip [UDP/IP] : 2 : 2 :  
MSAFD Tcpip [RAW/IP] : 2 : 3 : %SystemRoot%\system32\mswsock.dll 
MSAFD Tcpip [TCP/IPv6] : 2 : 1 :  
MSAFD Tcpip [UDP/IPv6] : 2 : 2 : %SystemRoot%\system32\mswsock.dll 
MSAFD Tcpip [RAW/IPv6] : 2 : 3 :  
RSVP TCPv6 Service Provider : 2 : 1 : %SystemRoot%\system32\mswsock.dll 
RSVP TCP Service Provider : 2 : 1 :  
RSVP UDPv6 Service Provider : 2 : 2 : %SystemRoot%\system32\mswsock.dll 
RSVP UDP Service Provider : 2 : 2 : 

This report also contains technical information about the state of the application when it crashed.

(Im Post my reports and spec like this because non of these options; "automatically" "try these manual steps" or "Show details" work for me in my outdated IE which is the only working browser I have atm)


AdapterDeviceID: 0x6719 AdapterVendorID: 0x1002 AvailablePageFile: 4607332352 AvailablePhysicalMemory: 1334870016 AvailableVirtualMemory: 3936632832 BuildID: 20130511120803 CrashTime: 1370580940 EMCheckCompatibility: true Email: njtharshr@gmail.com FramePoisonBase: 00000000f0de0000 FramePoisonSize: 65536 InstallTime: 1369263628 Notes: AdapterVendorID: 0x1002, AdapterDeviceID: 0x6719, AdapterSubsysID: 24611462, AdapterDriverVersion: 9.12.0.0

ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox ReleaseChannel: release SecondsSinceLastCrash: 290 StartupTime: 1370580845 SystemMemoryUsePercentage: 64 Theme: classic/1.0 Throttleable: 1 TotalVirtualMemory: 4294836224 URL: https://www.youtube.com/watch?v=saKv2djbQ5s Vendor: Mozilla Version: 21.0 Winsock_LSP: MSAFD Tcpip [TCP/IP] : 2 : 1 : %SystemRoot%\system32\mswsock.dll

MSAFD Tcpip [UDP/IP] : 2 : 2 :  
MSAFD Tcpip [RAW/IP] : 2 : 3 : %SystemRoot%\system32\mswsock.dll 
MSAFD Tcpip [TCP/IPv6] : 2 : 1 :  
MSAFD Tcpip [UDP/IPv6] : 2 : 2 : %SystemRoot%\system32\mswsock.dll 
MSAFD Tcpip [RAW/IPv6] : 2 : 3 :  
RSVP TCPv6 Service Provider : 2 : 1 : %SystemRoot%\system32\mswsock.dll 
RSVP TCP Service Provider : 2 : 1 :  
RSVP UDPv6 Service Provider : 2 : 2 : %SystemRoot%\system32\mswsock.dll 
RSVP UDP Service Provider : 2 : 2 : 

This report also contains technical information about the state of the application when it crashed.


My specs: Firefox ver. 21.0 Flashplayer 11.7.700.202 OS Windows 7 Professional (x64) Version 6.1.7601 Service Pack 1 Build 7601 Mobo BIOSTAR Group / TZ77XE3 System Type x64-based PC Processor Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz, 3401 Mhz, 4 Core(s), 4 Logical Processor(s) BIOS Version/Date American Megatrends Inc. 4.6.5, 4/19/2012 SMBIOS Version 2.7 Windows Directory C:\Windows System Directory C:\Windows\system32 Boot Device \Device\HarddiskVolume1 Hardware Abstraction Layer Version = "6.1.7601.17514" Installed Physical Memory (RAM) 8.00 GB Total Physical Memory 3.48 GB Available Physical Memory 1.41 GB Total Virtual Memory 6.96 GB Available Virtual Memory 4.46 GB Page File Space 3.48 GB

When ever I open any page containing a video, such as any youtube page my browser immediately closes and presents me with a crash report I believe this started happening after a firefox or adobe update a few weeks ago. The problem continues when Im in safe mode and Ive tried many suggested fixes including updating flash, reinstalling firefox, disabling hardware acceleration, checking for conflicting realplayer, editing my the flash cfg file, and so on but non of those had any effect and It's sad cause I know from looking though these forums and elsewhere that others are having the exact same problem and these solution aren't working for anyone. I couldn't find any answers to the problem so I reverted to firefox 20.1 decided to wait for next update, as there seems to be a flash update a couple weeks. Somehow I ended up back on FF21.0 and so Im here again asking the same question before I re-revert. So here are the details again. Im Post my reports and spec like this because non of these options; "automatically" "try these manual steps" or "Show details" work for me in my outdated IE which is the only working browser I have atm. The first report shows results with addons enabled and all my usual settings the second show results with in safe mode. As you can see the two are the same for the most part The report: With addons enabled ------------------------------------------------- AdapterDeviceID: 0x6719 AdapterVendorID: 0x1002 Add-ons: yesscript%40userstyles.org:1.9,optout%40google.com:1.5,foxyproxy%40eric.h.jung:4.2,adblockpopups%40jessehakanen.net:0.7,%7B73a6fe31-595d-460b-a920-fcc0f8843232%7D:2.6.6.2,%7B972ce4c6-7e08-4474-a285-3208198ce6fd%7D:21.0 AvailablePageFile: 4682809344 AvailablePhysicalMemory: 1420525568 AvailableVirtualMemory: 3792789504 BuildID: 20130511120803 CrashTime: 1370577662 EMCheckCompatibility: true Email: FramePoisonBase: 00000000f0de0000 FramePoisonSize: 65536 InstallTime: 1369263628 Notes: AdapterVendorID: 0x1002, AdapterDeviceID: 0x6719, AdapterSubsysID: 24611462, AdapterDriverVersion: 9.12.0.0 D2D? D2D+ DWrite? DWrite+ D3D10 Layers? D3D10 Layers+ ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox ReleaseChannel: release SecondsSinceLastCrash: 1109 StartupTime: 1370577654 SystemMemoryUsePercentage: 62 Theme: classic/1.0 Throttleable: 1 TotalVirtualMemory: 4294836224 URL: https://plus.google.com/u/0/_/notifications/frame?origin=http%3A%2F%2Fwww.youtube.com&source=yt&hl=en-US&jsh=m%3B%2F_%2Fscs%2Fabc-static%2F_%2Fjs%2Fk%3Dgapi.gapi.en.YwZcwvhQD7M.O%2Fm%3D__features__%2Fam%3DIA%2Frt%3Dj%2Fd%3D1%2Frs%3DAItRSTNqkRhMtkpSA0AbmH0iColYw_JJwg#pid=36&rpctoken=387582488&_methods=setNotificationWidgetSize%2CsetNotificationWidgetHeight%2CsetNotificationText%2ChideNotificationWidget%2CopenSharebox%2ConError%2C_ready%2C_close%2C_open%2C_resizeMe%2C_renderstart&id=I1_1370577662087&parent=http%3A%2F%2Fwww.youtube.com Vendor: Mozilla Version: 21.0 Winsock_LSP: MSAFD Tcpip [TCP/IP] : 2 : 1 : %SystemRoot%\system32\mswsock.dll MSAFD Tcpip [UDP/IP] : 2 : 2 : MSAFD Tcpip [RAW/IP] : 2 : 3 : %SystemRoot%\system32\mswsock.dll MSAFD Tcpip [TCP/IPv6] : 2 : 1 : MSAFD Tcpip [UDP/IPv6] : 2 : 2 : %SystemRoot%\system32\mswsock.dll MSAFD Tcpip [RAW/IPv6] : 2 : 3 : RSVP TCPv6 Service Provider : 2 : 1 : %SystemRoot%\system32\mswsock.dll RSVP TCP Service Provider : 2 : 1 : RSVP UDPv6 Service Provider : 2 : 2 : %SystemRoot%\system32\mswsock.dll RSVP UDP Service Provider : 2 : 2 : This report also contains technical information about the state of the application when it crashed. (Im Post my reports and spec like this because non of these options; "automatically" "try these manual steps" or "Show details" work for me in my outdated IE which is the only working browser I have atm) -------------------------------------------------------------- AdapterDeviceID: 0x6719 AdapterVendorID: 0x1002 AvailablePageFile: 4607332352 AvailablePhysicalMemory: 1334870016 AvailableVirtualMemory: 3936632832 BuildID: 20130511120803 CrashTime: 1370580940 EMCheckCompatibility: true Email: njtharshr@gmail.com FramePoisonBase: 00000000f0de0000 FramePoisonSize: 65536 InstallTime: 1369263628 Notes: AdapterVendorID: 0x1002, AdapterDeviceID: 0x6719, AdapterSubsysID: 24611462, AdapterDriverVersion: 9.12.0.0 ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox ReleaseChannel: release SecondsSinceLastCrash: 290 StartupTime: 1370580845 SystemMemoryUsePercentage: 64 Theme: classic/1.0 Throttleable: 1 TotalVirtualMemory: 4294836224 URL: https://www.youtube.com/watch?v=saKv2djbQ5s Vendor: Mozilla Version: 21.0 Winsock_LSP: MSAFD Tcpip [TCP/IP] : 2 : 1 : %SystemRoot%\system32\mswsock.dll MSAFD Tcpip [UDP/IP] : 2 : 2 : MSAFD Tcpip [RAW/IP] : 2 : 3 : %SystemRoot%\system32\mswsock.dll MSAFD Tcpip [TCP/IPv6] : 2 : 1 : MSAFD Tcpip [UDP/IPv6] : 2 : 2 : %SystemRoot%\system32\mswsock.dll MSAFD Tcpip [RAW/IPv6] : 2 : 3 : RSVP TCPv6 Service Provider : 2 : 1 : %SystemRoot%\system32\mswsock.dll RSVP TCP Service Provider : 2 : 1 : RSVP UDPv6 Service Provider : 2 : 2 : %SystemRoot%\system32\mswsock.dll RSVP UDP Service Provider : 2 : 2 : This report also contains technical information about the state of the application when it crashed. --------------------------------------------------------------------- My specs: Firefox ver. 21.0 Flashplayer 11.7.700.202 OS Windows 7 Professional (x64) Version 6.1.7601 Service Pack 1 Build 7601 Mobo BIOSTAR Group / TZ77XE3 System Type x64-based PC Processor Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz, 3401 Mhz, 4 Core(s), 4 Logical Processor(s) BIOS Version/Date American Megatrends Inc. 4.6.5, 4/19/2012 SMBIOS Version 2.7 Windows Directory C:\Windows System Directory C:\Windows\system32 Boot Device \Device\HarddiskVolume1 Hardware Abstraction Layer Version = "6.1.7601.17514" Installed Physical Memory (RAM) 8.00 GB Total Physical Memory 3.48 GB Available Physical Memory 1.41 GB Total Virtual Memory 6.96 GB Available Virtual Memory 4.46 GB Page File Space 3.48 GB

Chosen solution

You can try to toggle the media.windows-media-foundation.enabled pref to false on the about:config page.

Read this answer in context 👍 1

All Replies (6)

more options

Please obtain and paste in to your next reply a couple of the CrashIDs. The easiest method of obtaining these is to type about:crashes into the address bar of the crashing Firefox browser:

From what you say I assume Firefox or the Firefox plugin is only crashing when FlashPlayer is in use. It is best to avoid using Fx20 as it is now unsupported and not secure.

As a temporary workaround in order to have a secure working browser you may consider installing Firefox portable ESR as an additional browser ( Although it is not an officially supported Mozilla product, and the ESR version is not really intended for personal use outside of large groups with IT department support.)

more options

Report IDs

bp-71697f5d-41d4-48ae-9db9-3e6302130607 6/7/2013 12:56 AM
bp-6e1347bc-153f-433a-9c35-a5f022130607 6/7/2013 12:50 AM
bp-92a533a2-9e09-4c1e-8df7-deb4c2130607 6/6/2013 11:42 PM
9ef4e29d-27f7-46ce-8781-2786f15c6064 5/25/2013 12:11 PM
0e1b29ff-f445-4401-bd10-bcd5dad7797e 5/25/2013 10:08 AM

From what you say I assume Firefox or the Firefox plugin is only crashing when FlashPlayer is in use. It is best to avoid using Fx20 as it is now unsupported and not secure. Ok that seems odd to me. Why would this version be if part of automatic updates if it is so (and it certainly does appear to be)?

Modified by cor-el

more options

You probably have not seen anyone reporting the exact same problem as you. All three crash reports have the same crash signature and as currently ranked 67 it is not the commonest of reasons for a crash.

I hope you enter your email contact information when reporting crashes. I note you see this crash when using videos, others may possibly see this crash in other circumstances.

You have already tried the obvious, attempts at a fix so it is now down to wait and see, maybe developers working on the bug will report something or fix it.

Did you try my suggestion of installing portable ESR ?


For forum cross referencing purposes

  • Crash Reports for Crash IDs
    bp-71697f5d-41d4-48ae-9db9-3e6302130607
    bp-6e1347bc-153f-433a-9c35-a5f022130607
    bp-92a533a2-9e09-4c1e-8df7-deb4c2130607
  • (all three) Crash Signature: EnumSoftwareMFTs(_GUID const&, unsigned int, __MIDL___MIDL_itf_mfobjects_0000_0006_0003 const*, __MIDL___MIDL_itf_mfobjects_0000_0006_0003 const*, IMFActivate***, unsigned int*)
  • Related bug 858667 NEW crash in mozilla::wmf::MFTEnumEx @ EnumSoftwareMFTs
  • I note this was first seen in Fx21 and is 100% Windows 7


more options

Chosen Solution

You can try to toggle the media.windows-media-foundation.enabled pref to false on the about:config page.

more options

Ok when I said I had seen others with the same problem, I meant their problem was described in common terms the same as mine. I don't don't really know anything about crash sigs, or their metrics.

I didn't try ESR, it just doesn't sound like it's right for me. Or rather I don't want to concern myself with yet another browser when I already have two on my PC.

I did lookup EnumSoftwareMFTs and I see the point you are making. As well some support threads that I hadn't seen before, which point to the same solution cor-el is suggestion.

more options

And it work YAY.