I would be happy to help you get this fixed. What I need to help you with this is the crash id. Could you please post that? If you don't know how to get that you can find out how by going to the link.

Thanks for offering to help. Here is the ID: bp-7acf1078-6598-435d-8d0e-3c6082141008

Try to disable the HTML5 media player by setting these two prefs to false on the about:config page.

• media.directshow.enabled
• media.windows-media-foundation.enabled

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.

• http://kb.mozillazine.org/about:config

Hi gcdolan, Did corel's about:config page changes make a difference in the crashing when closing down Firefox with gmail open?

In further investigation, the steps to reproduce this may need to be specific. On shut down, with some help from a specialist it seems like some media decoding is running before the crash.

How many tabs did you have open, was it running for a long time etc? How did you quit? File Quit or Red x?

Cor-el, thanks for the suggestion. Unfortunately, it did not help.

guigs2 -- unfortunately, cor-el's suggestion did not help. This problem occurs if only one tab is open (and it is gmail) and also if two tabs are open, one of which is gmail. I quit by using the red x.

Does it make a difference if you use File > Exit Firefox or the power button in the "3-bar" Firefox menu button drop-down list?

cor-el, neither of those alternative ways of shutting down make a difference. I did a little more experimenting and found that I also get the crash report without opening gmail. I've tried to find a consistent result without success, but it seems that if I click through a couple of sites and back to the home page (google), I will get the crash.

Hi gcdolan, Do you happen to have any crash ids for further investigation? Open up the page about:crashes and submit the crashes. Please copy the last few with the bp- in the front of the signature.

Thank you!

guigs2, here are today's reports. Thanks for helping

bp-15eb4193-295f-4ab8-9f02-998862141010 10/10/2014 9:35 AM bp-fc36d919-e57f-4be4-8a32-fd83e2141010 10/10/2014 9:31 AM bp-04bde210-224c-44f0-837c-739f32141010 10/10/2014 9:30 AM bp-526bd980-a4a5-4bd6-8b39-acec02141010 10/10/2014 9:28 AM bp-e44b2c28-7a33-4c04-aea2-b0c202141010 10/10/2014 9:16 AM bp-b886ddad-8f62-4957-b24b-218b12141010 10/10/2014 9:16 AM bp-57476b3b-97ea-4314-9dba-f1f832141010 10/10/2014 9:15 AM bp-d6889e99-79b7-4987-8d33-c4a9a2141010 10/10/2014 9:02 AM bp-41853e8a-3096-4e0b-9e4d-231da2141010 10/10/2014 9:01 AM bp-a4258277-dbb2-4a4c-808a-7c53f2141010 10/10/2014 8:58 AM bp-8f7982e8-ca90-462b-b7c3-e54b22141010 10/10/2014 8:58 AM bp-23baf852-3ee9-4771-b51e-041a22141010 10/10/2014 8:54 AM bp-a32fcb48-5354-4353-b09d-3e5d62141010 10/10/2014 8:52 AM bp-41994e64-4da5-4ceb-a8d1-283102141010 10/10/2014 8:51 AM

The bug associated with the crash does not have a lot of reports, however the comments of the 1K or more have mentioned a lot of time out or connection errors.

If you disable ipv 6 does it still crash? Server Not Found - Troubleshoot connection problems

You can try to disable the HTML5 media player for some file formats to see if that helps.

• media.directshow.enabled = false
• media.windows-media-foundation.enabled = false

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.

• http://kb.mozillazine.org/about:config

• https://developer.mozilla.org/Media_formats_supported_by_the_audio_and_video_elements

Cor-el, thanks for the suggestion, but unfortunately it did not help.

guigs, thanks for the suggestion to disable ipv 6, but it did not help