hello, could you provide your latest few submitted crash reports? please enter about:crashes into the location bar, copy the latest few report ids from there starting with bp- & paste them here into a forum reply. this will give us a better understanding what may be triggering those crashes.

Hello,

Here are the report ID's. NOTE that the first one you may not find because when I got up this morning to find Firefox had crashed last night the message from the Mozilla said it could not submit a crash report because a reporting server was not specified. So I'll include 3 others in addition to that one.

https://crash-stats.mozilla.com/report/index/bp-d06a8145-2608-4ddf-9ab2-be4ab2160709 https://crash-stats.mozilla.com/report/index/bp-d87bfa54-5ff8-42b0-a2d8-865e82160709 https://crash-stats.mozilla.com/report/index/bp-672f80eb-f846-493d-aee8-d592a2160708 https://crash-stats.mozilla.com/report/index/bp-ac5e3014-58af-45c9-809a-14f8b2160708

In just the last few days I experienced 3 crashes on July 8th and 5 on both the 6th and 7th.

Thanks Allen

sorry, those don't point to any conclusive reason. can you try uninstalling firefox and switching to the 64bit version of the browser and see if the crashes continue?

https://www.mozilla.org/en-US/firefox/all/

Hi Phillip,

I have a concern about plugin support with 64 bit Firefox. One of the most important ones is Norton Security. Symantec indicates 64 bit Firefox is supported but the following Mozilla question seems to imply otherwise:

https://support.mozilla.org/en-US/questions/1103490

I am a software engineer myself and I have a theory what might be contributing to this.

Through prior versions I have noted that GC is not very reliable and memory just keeps creeping higher and higher to the point it reaches upwards of ~3GB and I end up having to restart Firefox several times a day. For the last couple or so versions before 47.0.1 GC and memory utilization as a whole have improved dramatically (though I still had to restart occasionally).

However in 47.0.1 GC really slows down and pretty much freezes Firefox for upwards of as much as 1/2 minute and memory creeps up to the ~3GB level much quicker. I've been noticing that as it climbs to somewhere between 2 1/2 to 3 GB I have witnesses the crashes a few times. These are times when I just happened to be actively using Firefox and happened to have Task Manager up when the crash occurred.

I tend to spend quite a lot of time on a popular/major blogging site (Daily Kos) and some of the more popular diaries (articles essentially) easily have several hundred comments which have to load. Doing something basic like just refreshing one of those diaries have led to visible memory increase. Twice now I've run a test where I restart Firefox, load up a couple of Daily Kos diaries and just keep refreshing the page while monitoring memory use via Task Manager, and been able to get Firefox to upwards of 3 GB memory usage at which point it becomes almost impossible to use because most time seems to be spent running GC.

Perhaps this might be a starting point of being able to reproduce this?

I'd also be willing to run private builds with more debugging if you choose to go that route.

Thanks very much Allen

Hi Phillip,

Anything more??

Thanks Allen

i'm just a normal user & not in the position to provide you with any particular debug builds. the recommendation to try a 64bit build still stands - it will only support flash and silverlight as NPAPI plugins. not sure how norton is implementing its hook into the browser and if they'd depend on the npapi interface, but imho this isn't essential anyway. also the last crash in your list seems top have been caused by norton in particular...

Hi Phillip,

Sorry about that. I shouldn't have assumed that was the case.

I can follow up with Symantec. I am actually a GURU on their support forum, though I have been largely inactive for some time due to family issues.

All the best and thanks. Allen