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.

Using your mouse, mark the most recent 7 - 10 Submitted crash reports, and copy them. Now go to the reply box and paste them in.

For more help on crash reports, see; https://support.mozilla.org/en-US/kb/firefox-crashes-asking-support

My bad, forgotten about that. Here you go:

bp-6e63761d-8358-4ede-9929-f7fe50190716 bp-ac87b1d4-8e4b-492c-a32a-f0f530190716 bp-0bf4aa83-8192-4592-a618-3f5790190716 bp-9f779a23-5080-462d-ba88-6e2d90190716 bp-fff46dd1-9543-485b-b21b-b47720190716 bp-611564d8-3a35-4363-95a2-51c6a0190716 bp-4b077468-ac59-4a08-80d2-3cc5c0190716 bp-7bd1206f-9f99-458c-92a6-b377d0190716 bp-7b3d7f66-9814-45b4-98b0-bf3ed0190716 bp-8e5180bf-1de3-49e2-ad65-499ff0190716

bp-6e63761d-8358-4ede-9929-f7fe50190716 bp-0bf4aa83-8192-4592-a618-3f5790190716 bp-9f779a23-5080-462d-ba88-6e2d90190716

Signature: u8_deblocking_chroma_vert_edge_h264_sse2

Crash Reason EXCEPTION_ACCESS_VIOLATION_WRITE

msmpeg2vdec.dll = Microsoft DTV-DVD Video Decoder ++++++++++++++++++++++++++++++++++++++++++++++++ bp-ac87b1d4-8e4b-492c-a32a-f0f530190716 Signature: smallvec::SmallVec<T>::push<T>

Crash Reason EXCEPTION_ACCESS_VIOLATION_WRITE +++++++++++++++++++++++++++++++++++++++++++ bp-fff46dd1-9543-485b-b21b-b47720190716 bp-611564d8-3a35-4363-95a2-51c6a0190716

Signature: msmpeg2vdec.dll | BaseThreadInitThunk

Crash Reason EXCEPTION_ACCESS_VIOLATION_WRITE

msmpeg2vdec.dll = Microsoft DTV-DVD Video Decoder

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://answers.microsoft.com/en-us/windows/forum/all/windows-xp-scan-and-fix-disk-errors/6fe2827a-4be6-4bc1-8083-5139b5aa3a3d

Wiki - Windows 10 System File Check http://answers.microsoft.com/en-us/windows/wiki/windows_10-update/system-file-check-sfc-scan-and-repair-system-files/bc609315-da1f-4775-812c-695b60477a93

Thanks, ran DISM and SFC. However, no dice:

bp-934e59ee-1f4d-4ac6-a30f-a57430190717 bp-e42d04dd-6bcc-4c92-b72c-e83840190717 bp-0161c197-42a5-43ee-bd63-c02530190717 bp-340face9-2724-43c0-b383-4a3510190717 bp-f6f0344d-1c91-468c-a282-f4c730190717 bp-63bad731-5bb2-4785-bcbc-74d710190717

The new reports are the same as the above.

bp-934e59ee-1f4d-4ac6-a30f-a57430190717 bp-340face9-2724-43c0-b383-4a3510190717

Signature: msmpeg2vdec.dll | EtwEventWrite ++++++++++++++++++++++++++++++++++++++ bp-e42d04dd-6bcc-4c92-b72c-e83840190717 bp-0161c197-42a5-43ee-bd63-c02530190717

Signature: u8_deblocking_chroma_vert_edge_h264_sse2

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

I activated webgl and hardware accelaration (had tried turning them off). Drivers are up to date (checked again). Still the same stuff:

bp-e78cc7c2-9e63-471f-bd4f-5fbeb0190717 bp-f3092f97-02eb-423a-bf7e-725c50190717 bp-9f1ccb5c-df21-4dd3-8538-b34b60190717 bp-8c835276-8e7a-41e2-ac98-215c10190717 bp-7337e2b8-a69c-46d3-b675-be1a00190717

The same as the others. I called for more help.