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 resent 7 - 10 crash reports, and copy them. Now go to the reply box below and paste them in.

(Please don't take a screenshot of your crashes, just copy and paste the IDs. The below image is just an example of what your Firefox screen should look like.)

Many site issues can be caused by corrupt cookies or cache.

• Clear the Cache and

• Remove Cookies
  Warning ! ! This will log you out of sites you're logged in to.

Type about:preferences<Enter> in the address bar.

• Cookies; Select Privacy. Under History, select Firefox will Use Custom Settings. Press the button on the right side called Show Cookies. Use the search bar to look for the site. Note; There may be more than one entry. Remove All of them.
• Cache; Select Advanced > Network. Across from Cached Web Content, Press Clear Now.

If there is still a problem, Start Firefox in Safe Mode {web link} A small dialog should appear. Click Start In Safe Mode (not Refresh). While you are in safe mode;

Type about:preferences#advanced<Enter> in the address bar.

Under Advanced, Select General. Look for and turn off Use Hardware Acceleration.

Poke around safe websites. Are there any problems?

Then restart.

Submitted Crash Reports Report ID Date Submitted bp-b73d83a6-f69d-4a86-8526-cd97b2161219 12/18/2016 19:32 bp-99edb3b1-5e69-4f89-87b4-c6b022161219 12/18/2016 19:29 bp-0aa30400-59a9-455f-8f6e-f9ab02161219 12/18/2016 19:15 bp-74abb3b5-f0ec-49c1-8226-61ba62161219 12/18/2016 18:19 bp-f6fdc5e2-1a3e-4810-b35d-5fd602161217 12/16/2016 18:57 bp-a0235b4b-ab22-46bd-a4b7-277722161216 12/15/2016 22:28 bp-f5c0add3-87c2-4204-a55f-851d32161215 12/15/2016 13:21 bp-f0aa11de-ffb2-49b7-a7a5-853092161215 12/15/2016 13:10 bp-4c6d524b-ed88-48b3-ba2d-b226f2161215 12/15/2016 13:07 bp-c4a2f692-402e-46e8-b650-8aeec2161215 12/15/2016 13:04 bp-3116c8f4-a0d1-4f57-912c-682ea2161215 12/15/2016 11:19 bp-6f15f94f-f646-45c3-9a57-8c7be2161215 12/15/2016 11:15 bp-9929d483-e1d9-4f73-be7c-d77be2161215 12/15/2016 11:12 bp-6f42f915-de2d-490b-b975-a23d32161215 12/15/2016 11:09 bp-adca4c3d-0479-4e03-891a-e39e22161215 12/15/2016 10:04 bp-54b1dba9-2ded-4cf8-b84e-33a342161214 12/14/2016 17:46 bp-83cf03f6-6ab2-4b8c-97c4-92e922161214 12/14/2016 17:40 bp-31371b3f-1780-4722-8741-6eaab2161214 12/14/2016 17:25 bp-91a46fea-05e5-4a5c-bc69-ff8fe2161205 12/5/2016 14:56

Product Firefox Release Channel release Version 50.1.0 Build ID 20161208153507

bp-b73d83a6-f69d-4a86-8526-cd97b2161219 bp-99edb3b1-5e69-4f89-87b4-c6b022161219

Signature: OOM | small

Attention Sumo's there are 40 related bug reports

inproc_agent.dll = Kaspersky Inproc Agent ++++++++++++++++++++++++++++++++++++++++++ Product Firefox Release Channel esr Version 45.6.0esr Build ID 20161209150850

bp-0aa30400-59a9-455f-8f6e-f9ab02161219 bp-74abb3b5-f0ec-49c1-8226-61ba62161219

Signature: mp4_demuxer::MP4Metadata::GetNumberTracks

inproc_agent.dll = Kaspersky Inproc Agent

msmpeg2vdec.dll = Microsoft DTV-DVD Video Decoder

This is for Sumo's Related Bugs 1258410 VERIFIED FIXED crash in mp4_demuxer::MP4Metadata::GetNumberTracks

1245463 RESOLVED FIXED crash in mp4_demuxer::MP4Metadata::GetNumberTracks, abort should let appendBuffer finish

1239983 RESOLVED FIXED Crash in mp4_demuxer::MP4Metadata::GetNumberTracks - Add diagnostic assertions

Update Kaspersky. If the problem continues, disable it.