What's your computer system and Firefox version?

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 recent 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.

Submitted Crash Reports Report ID Date Submitted ff0be9b8-a680-49f5-ab14-4e0ee6427ff6 25-07-2017 17:39 2b188280-f235-4478-9f01-752352d6d152 25-07-2017 17:26 87bffbe7-00b9-4e8f-a833-84b016333de6 25-07-2017 17:25 4d5ed0ed-8e1b-4430-9b6f-afc54358b727 25-07-2017 17:24 bp-48f7f599-661c-4be2-9e2a-250ad1170724 25-07-2017 17:02 605d941b-1433-4ea4-b24c-1511b34d9d65 25-07-2017 16:57 760a48cb-b673-4d9b-94b6-2738a9449695 25-07-2017 16:52 db535e51-3914-4941-800a-cd0f1db7eb4f 25-07-2017 16:52 c5a7375b-6536-4712-9342-b08509cc363f 25-07-2017 16:51

thanks, the one submitted crash reports points towards the quickheal security software that is meddling with firefox and causing this crash.