gldragon said

Should I change the setting in my Firefox to "never activate"?

It can't hurt for now.

Make sure your Java (Not JavaScript) is up to date Verify Java and Find Out-of-Date Versions {web link}

Version 8 Update 66 Release date November 16, 2015

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

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.

This is what I got per your steps:

94996a92-31b8-4c6b-bbcf-0d9044eed8e4 27-Nov-15 14:01 a23324d7-0597-4d40-811f-3e93157fa594 26-Nov-15 22:03 cc98c517-6e2e-4015-83f0-e7e2ac12c080 26-Nov-15 21:26 2b33c78c-1687-4bb0-9d0f-0c2772470406 26-Nov-15 21:10 3a6e5f07-82fa-479c-aa62-2acad638a19a 26-Nov-15 14:52 2ba39128-fdea-4606-8a96-32b0476d6d03 26-Nov-15 08:59 6e55c7b2-e9f1-4d20-a7c5-57e11f75b513 24-Nov-15 21:01 a4827faa-807a-433c-add9-aaf9c18ad043 24-Nov-15 21:00 08c3dbc0-1964-45d0-974d-58556f5ef220 17-Nov-15 22:20 5c49619f-198e-45b8-aebf-40e95d95b8b9 17-Nov-15 18:19

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 and select Submit.

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.

How do I send them to the Mozilla Servers? I would love to send these even if Firefox did not crash...yet.

FredMcD said

Note: If any reports do not have BP in front of the numbers/letters, click it and select Submit.

Did that, but I don't see a "Submit" button.

Did the crash number change? Post the new numbers.

Yes, when i clicked it, it switched to bp-numbers:

bp-b7354661-678f-4999-813d-bee882151128 27-Nov-15 22:17 bp-3f05dc7a-b593-43f6-98b2-08f142151128 27-Nov-15 22:15 bp-5675a97f-aafb-4b17-892c-7a2522151128 27-Nov-15 22:12 bp-870f5756-1186-4b8e-b642-9a40d2151128 27-Nov-15 22:06 bp-19b66607-11c5-492b-a0fc-9e45f2151128 27-Nov-15 21:56 bp-ba0383b1-e152-4c72-b7cd-311ba2151128 27-Nov-15 20:10 bp-a3e1e771-5e2e-44e0-aef4-1107c2151128 27-Nov-15 20:00 bp-2d5b61c2-697e-4e88-9870-21ca92151128 27-Nov-15 19:59

Very good work. Now then;

Product Firefox Version 42.0 Build ID 20151029151421 Release Channel release OS Windows NT OS Version 5.1.2600 Service Pack 3

bp-b7354661-678f-4999-813d-bee882151128

Signature CreateFileMappingA

This is for Sumo's Related Bugs 1219672 NEW --- [meta] e10s ShutDownKill aborts on Windows ++++++++++++++++++++++++++++++++++ bp-3f05dc7a-b593-43f6-98b2-08f142151128

Signature EMPTY: no crashing thread identified

This is for Sumo's Related Bugs 1219672 NEW --- [meta] e10s ShutDownKill aborts on Windows

1113145 NEW --- FF don't try to download a +5GB .out file from a ftp and instead tries to load the file to display it and then crash

945328 RESOLVED WORKSFORME Firefox 25.0.1 Crash Report [@ EMPTY: no crashing thread identified; ERROR_NO_MINIDUMP_HEADER ], WinDbg logs

837835 RESOLVED INCOMPLETE increase in crashes with EMPTY dumps in Firefox 19 and 20 cycles

711568 RESOLVED WONTFIX Crash [@ EMPTY: no crashing thread identified; corrupt dump ] & [ERROR_NO_MINIDUMP_HEADER] (unactionable) ++++++++++++++++++++++++++++++++++++ bp-5675a97f-aafb-4b17-892c-7a2522151128

Signature nsExpirationTracker

utildebuglog.dll = Trend Micro Inc

TmFFExt2.dll = 趨勢科技 OfficeScan 用戶端 = Trend Micro OfficeScan Client

npToolbarChrome.dll = Trend Micro Titanium = Trend Micro Inc

TmBpFfCore.dll = Browser Exploit Prevention - Trend Micro Browser Plug-In

System Memory Use Percentage 95%

This is for Sumo's Related Bugs 560325 NEW --- Firefox regularly (a few times a day) crashes on a specific website [@ nsExpirationTracker<gfxTextRun, int>::RemoveObject(gfxTextRun*) ]

548102 NEW --- Crash Report [@ nsExpirationTracker<imgCacheEntry, 3u>::RemoveObject(imgCacheEntry*) ] +++++++++++++++++++++++++++++++++++++++++++++++++ bp-870f5756-1186-4b8e-b642-9a40d2151128

Signature moz_abort | pages_commit

System Memory Use Percentage 98

utildebuglog.dll = Trend Micro Inc

TmFFExt2.dll = 趨勢科技 OfficeScan 用戶端 = Trend Micro OfficeScan Client

npToolbarChrome.dll = Trend Micro Titanium = Trend Micro Inc

TmBpFfCore.dll = Browser Exploit Prevention - Trend Micro Browser Plug-In

This is for Sumo's Related Bugs 1128170 RESOLVED FIXED OOM crash while watching a HTML5 video on Youtube w/ AMD hardware and DXVA

Do you have anything on your system from Trend Micro?

Firefox uses too much memory (RAM) - How to fix This article describes how to make Firefox use less memory to make it run faster and prevent crashes.

https://support.mozilla.org/en-US/kb/firefox-slow-how-make-it-faster

https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix

https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding

I've called the big guys to help you. Good luck.

I have a Trend Micro Toolbar in Firefox. It identifies what links are good or dangerous.

Check the above links. After, if there is still a problem, disable it as a test.

I believe we've got to the root of the problem. For some time my Firefox Browser was slow, has been hanging for a bit, and had crashed 5 times in 3 minutes Thursday. Now that I've refreshed Firefox, even with Trend Micro inserted in, my browser is running faster than it ever was before. Hasn't crashed yet, no hanging, and now I know what the problem could be before it becomes a problem. Thanks, FredMcD, and team!

That was very good work. Well Done.

It might have been a conflict with an add-on. If you add them back, keep an eye out for problems.