In the address bar, type about:crashes<enter>. Note: If any reports do not have BP in front of the numbers/letters, click it to submit them.

The crash report is several pages of data. We need the report numbers to see the whole report.

Signature: nvwgf2umx.dll | ntdll.dll@0x3c1b7

msmpeg2vdec.dll = Microsoft DTV-DVD Video Decoder

msvproc.dll = Media Foundation Video Processor

mfplat.dll = Microsoft Windows Media Foundation Platform

d3d11.dll = Direct3D 11 Runtime = Microsoft

KERNELBASE.dll = Microsoft

msctf.dll = Microsoft

ntdll.dll = Microsoft

nvwgf2umx.dll = Dwm.exe = Microsoft Desktop Window Manager

Perform a System File Check to fix corrupted system files Win 7, 8, 10, Vista: https://support.microsoft.com/en-us/kb/929833 Win XP: https://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/system_file_checker.mspx?mfr=true

See if there are updates for your graphics drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

Forgot to add; Some of your crash reports weren’t sent to the Mozilla Servers.

In the address bar, type about:crashes<enter>. Note: If any reports do not have BP in front of the numbers/letters, click it to submit them.

The crash report is several pages of data. We need the report numbers to see the whole report.

I have run sfc 2 times already. There is no error.

There is new graphic driver update. I just updated and I will see if it fixes my problem.

hi laija, please try this in order to address crashes that might happen during media playback: enter about:config into the firefox address bar (confirm the info message in case it shows up) & search for the preference named media.windows-media-foundation.allow-d3d11-dxva. double-click it and change its value to false.

Thanks for reply. Yeah, these crashes happened when I was watching Twitch. I had 2 more crashes since my last post.

This one happened after I updated my graphic driver. bp-e3cf66c1-e9ca-4091-9655-92e932161119

This one happened shortly after i change media.windows-media-foundation.allow-d3d11-dxva to false bp-ebe0c546-a813-4716-8dc0-013492161119

This one happened after I updated my graphic driver. bp-e3cf66c1-e9ca-4091-9655-92e932161119

Signature: nvwgf2umx.dll | ntdll.dll@0x3c1b7

msvproc.dll = Media Foundation Video Processor

msmpeg2vdec.dll = Microsoft DTV-DVD Video Decoder

mfplat.dll = Microsoft Windows Media Foundation Platform

d3d11.dll = Direct3D 11 Runtime = Microsoft

KERNELBASE.dll = Microsoft

msctf.dll = Microsoft

user32.dll = Windows User API

ntdll.dll = Microsoft

nvwgf2umx.dll = Dwm.exe = Microsoft Desktop Window Manager +++++++++++++++++++++++++++++++++++++++++++++++++++ shortly after i change media.windows-media-foundation.allow-d3d11-dxva to false

bp-ebe0c546-a813-4716-8dc0-013492161119

Signature: nvd3dumx.dll | ntdll.dll@0x3c1b7

mfcore.dll = Media Foundation Core DLL = Microsoft

msmpeg2vdec.dll = Microsoft DTV-DVD Video Decoder

d3d9.dll = Microsoft Direct3D

mfplat.dll = Microsoft Windows Media Foundation Platform

d3d11.dll = Direct3D 11 Runtime = Microsoft

KERNELBASE.dll = Microsoft

msctf.dll = Microsoft

user32.dll = Windows User API

ntdll.dll = Microsoft

nvd3dumx.dll = NVIDIA Graphics Driver

nvwgf2umx.dll = Dwm.exe = Microsoft Desktop Window Manager

I still got crashes when playing video so I disable HW acceleration and restart firefox. I haven't gotten any crashes since then. It's really strange because firefox was working fine before with HW acceleration enabled. Maybe firefox or graphic driver updates were the cause, I don't know. This is resolved for now.

That was very good work. Well done.