El Capitan means nothing to me. It is Mac OS 10.11 please submit that next time or other places so I (others) do not have to search for that information. Thanks.

Support for Mac OS starts at 10.9 so you are a couple versions safe for now.

So might as well uninstall 1 more time and see if these work

Some people with Macs are going to the Extended Release ver 52.4.1 https://www.mozilla.org/en-US/firefox/organizations/all/ Above is a Full installer as is below https://www.mozilla.org/en-US/firefox/all/ ver 56.0.1

Please let us know if this solved your issue or if need further assistance.

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 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.

@Pkshadow - Thanks i will do that next time, i reinstalled and unfortunately it didn't work.

@FredMcD - Thanks for your response, please find the detail below, these are the last few examples and i hope it is what you are looking for. 1EA0AF6E-D5C2-4D3F-94BD-87762BFF06EC 12/10/2017 7:41 PM B87A3511-E905-4CDA-9CC4-639D91B000A9 12/10/2017 7:41 PM 08D8B43D-7931-4951-BA33-8C7AB6C28B57 12/10/2017 7:41 PM C7F5F9BE-0F4E-436B-BCFC-FE6158BC0F1C 12/10/2017 7:41 PM 9729B2F9-D7C8-477D-9792-69803C8208FB 12/10/2017 7:37 PM 81267491-EBE5-411E-B586-F5FC40F83CA1 12/10/2017 7:35 PM AF94045F-0DA9-437A-B49A-704EF3C09B27 12/10/2017 7:35 PM 7887DB1A-A08F-4019-AEAE-9DD1094401FD 12/10/2017 7:22 PM

@FredMcD - i just looked again and i can see that i might not have provided the correct reports, please find the ones with BP attached: Report ID Date Submitted bp-7f80f36e-0d57-4627-955c-400681171012 12/10/2017 7:36 PM bp-e8005172-f77e-4a59-836d-82c0b0171012 12/10/2017 7:31 PM bp-9368ee47-43e5-4c51-9557-ec8c11170907 7/09/2017 4:18 PM bp-baad4c43-2664-463e-bc07-d2ad80170805 6/08/2017 8:05 AM bp-cfb6fd59-b9bd-45e1-983a-553d81170604 4/06/2017 5:24 PM bp-3cf02940-a198-4ff4-8f53-1f0252161207 7/12/2016 7:34 PM bp-f50c1e59-d3f8-4841-aee2-6849e2100413 13/04/2010 10:39 PM bp-1a1fd8ad-f127-4cfd-bb69-266e62100406 6/04/2010 10:37 PM

Well done.

Not much here. Hmm . . .

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?

Start your Computer in safe mode with network support. Then start Firefox. Try Safe websites. Is the problem still there?

http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting Any Computer In Safe Mode; Free Online Encyclopedia

Hey, i tried starting in safe mode a few times and it crashes in safe mode as well. I'm finding this issue very strange. I haven't downloaded any new programs, i haven't visited any shady websites and others in my house don't use this computer.

Please post the new crash reports.

Did you try the Computer in Safe mode?

Hey, sorry for late reply, a few things going on. I just tried to open the computer in safe mode and no go unfortunately. bp-7eff06cb-00e6-4dae-9057-c77531171016 17/10/2017 8:28 AM

Let’s do a full clean re-install;

Download Firefox For All languages And Systems {web link}

Save the file. Then Close Firefox.

Using your file browser, open the Programs Folder on your computer.

Windows: C:\Program Files C:\Program Files (x86)

Mac: Open the "Applications" folder. https://support.mozilla.org/en-US/kb/how-download-and-install-firefox-mac

Linux: Check your user manual. If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it. See Install Firefox on Linux; https://support.mozilla.org/en-US/kb/install-firefox-linux

If you downloaded and installed the binary package from the Firefox download page, simply remove the folder Firefox in your home directory. http://www.mozilla.org/firefox#desktop ++++++++++++++++++++++++++++ Do Not remove the profiles folder.

Look for, and rename any Mozilla or Firefox program folders by adding .old to them. Do not rename the Mozilla Thunderbird folder if there is one.

After rebooting the computer, run a registry scanner if you have one. Then run the installer. If all goes well, remove the OLD folders when you are done. +++++++++++++++++++++++++++ If there is a problem, start your Computer in safe mode and try again.

http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode This shows how to Start all Computers in Safe Mode; Free Online Encyclopedia

Try the steps posted in comment 25 in this bug report:

• https://bugzilla.mozilla.org/show_bug.cgi?id=1404298#c25

(please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html)