Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?

While still in Safe Mode,

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. Press the Reply button. 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 +++++++++++++++++++++++ If you can't get Firefox to open, you will have to do this the hard way.

https://support.mozilla.org/en-US/kb/mozillacrashreporter Open the file browser / explorer on your computer. Note: You may have to enable Show Hidden Folders / Files. Enter this in the address bar;

Windows: %APPDATA%\Mozilla\Firefox\Crash Reports\submitted Win 7/Vista: C:\Users\<username>\AppData\Roaming\Mozilla\Firefox\Crash Reports\submitted Win XP/2000: C:\Documents and Settings\<username>\Application Data\Mozilla\Firefox\Crash Reports\submitted

Mac OS: /Users/<username>/Library/Application Support/Firefox/Crash Reports/submitted Linux: /home/<username>/.mozilla/firefox/Crash Reports/submitted

Copy the most recent 5-7 File Names in the folder. Post the information in the reply box.

Ok here are the crash reports:

bp-ef552062-e044-40a4-b767-90ebd1170807 8/7/17 9:52 AM bp-c09c07d8-9057-44ee-8748-c98bc1170807 8/7/17 9:08 AM bp-f126e71f-4e47-4b38-bf2a-a059c0170807 8/7/17 9:05 AM bp-460e674d-514b-4858-9a26-f13271170806 8/6/17 6:44 PM bp-ecf79a50-6aae-4e38-98fc-39ea81170806 8/6/17 6:41 PM bp-5a2f2ae3-b886-4213-a484-ff13e1170806 8/6/17 9:19 AM bp-f1b5a75f-a36c-40b1-8ad7-e79d60170805 8/5/17 9:42 PM bp-821dc35f-dbf9-44a1-a60e-3297e0170805 8/5/17 9:39 PM bp-61a441fa-0b62-4da0-ab49-c7c971170805 8/5/17 9:31 PM bp-8a548794-1440-4483-a7b9-0a3731170805 8/5/17 9:24 PM bp-1c66c5e0-ae03-4e4b-8ec0-d9bc40170805 8/5/17 6:30 PM bp-a9706126-47fb-4922-8d6d-3dff01170805 8/5/17 6:29 PM bp-ab3e4147-3b59-4d85-aa7f-70a641170805 8/5/17 6:14 PM

Product Firefox Release Channel release Version 54.0.1 Build ID 20170628075643 OS Windows 10 OS Version 10.0.15063

bp-ef552062-e044-40a4-b767-90ebd1170807 bp-c09c07d8-9057-44ee-8748-c98bc1170807 bp-f126e71f-4e47-4b38-bf2a-a059c0170807

Signature: GlyphLookupCache::TryGetCachedGlyphLayout<T>

affemb64.dll = Actual File Folders - Actual Tools

Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?

I am running firefox in safe mode, so far no crash but what is next? do I keep running it without plugins all the time?

This is another crash while running safe mode

https://crash-stats.mozilla.com/report/index/bp-e809c6fc-762e-4ce6-9c58-da4341170807

bp-e809c6fc-762e-4ce6-9c58-da4341170807 Signature: GlyphBitmapLayout::ReadFromCache

This may be a Win 10 issue. I called for more help.

This could be a problem with a specific font.

Did you recently install or update any font(s)?

You can try to disable hardware acceleration in Firefox.

• Options/Preferences -> Advanced -> General -> Browsing: "Use hardware acceleration when available"

You need to close and restart Firefox after toggling this setting.

• https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems

You can check if there is an update for your graphics display driver and check for hardware acceleration related issues.

• https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration

You can check for issues caused by plugins.

• set plugins (Flash) to "Ask to Activate" on the about:addons page ("3-bar" menu button or Tools -> Add-ons -> Plugins)
• plugins are not affected by Firefox Safe Mode

Ok done, I didnt install any new fonts but installed a video converting program. The display driver is up to date. I will check for hardware acceleration issues indicated. Thanks.

Here are more crashes for today

bp-cdbd68e1-9861-43fb-8041-2c8c81170809 8/9/17 8:48 AM bp-e6f939b0-00e1-487b-b722-d81281170809 8/9/17 8:15 AM bp-5c7bd0ec-524d-4045-abfd-ca0b91170809 8/9/17 8:12 AM bp-6d4c5c91-30ab-4949-b551-f26451170809 8/9/17 8:11 AM bp-98860871-c411-4daf-9cfb-d30dc1170808

They happened when I tried to open facebook. Safe mode is not helpful No other browser on my computer is crashing like that.

Still the same signature.

• Firefox 54.0.1 Crash Report [@ GlyphBitmapLayout::ReadFromCache ]

Firefox 52+ has changed from Cairo to Skia for canvas/content rendering.

• https://www.mozilla.org/en-US/firefox/52.0/releasenotes/
• When not using Direct2D on Windows, Skia is used for content rendering

You can modify these gfx.*.azure.backends prefs on the about:config page to revert to the old font rendering swap the skia,cairo order to cairo,skia or remove the skia and leave cairo.

• gfx.canvas.azure.backends = direct2d1.1,cairo,skia
• gfx.content.azure.backends = direct2d1.1,cairo,skia

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

Ok good, done that already. I opened facebook and another page that was causing crashes and so far no crash. Lets wait and see. If I get more crashes I will post again