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 Submitted 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

here are some... hope i have shared in the right way

https://crash-stats.mozilla.org/report/index/f6d1b7da-212a-4318-8a54-1bb800191125 https://crash-stats.mozilla.org/report/index/3dbae753-307d-48e0-b5ca-484b80191125 https://crash-stats.mozilla.org/report/index/a2613458-8e19-4c86-b732-d919f0191125 https://crash-stats.mozilla.org/report/index/737668e6-858a-4205-82df-920e10191125

Product Firefox Release Channel release Version 70.0.1 Build ID 20191030021342 (2019-10-30) OS OS X 10.14 OS Version 10.14.6 18G1012

Sun, 24 Nov 2019 15:39:10 GMT bp-f6d1b7da-212a-4318-8a54-1bb800191125

Mon, 25 Nov 2019 11:51:08 GMT bp-3dbae753-307d-48e0-b5ca-484b80191125

Sun, 24 Nov 2019 15:40:56 GMT bp-a2613458-8e19-4c86-b732-d919f0191125

Signature: _platform_strlen | CFNumberGetTypeID

Crash Reason EXC_BAD_ACCESS / KERN_MEMORY_ERROR

Looks like you are having a bad memory issue.

https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-ram 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

sorry, but none of the provided solutions solve the problem in any way. i tried also: - to "downgrade" the version, using release 69 - and the one called " Firefox Extended Support Release (ESR)" i erased every data with a specific software, before every new installation in order to be sure to not keep any error i can't figure out what is going on. i didn't change anything in the mac nor the os! please, since i'm a technical-dumb user, could you explain me what does "bad memory issue" means? as a designer, i'm working every day with gigabyte-weighed images, and i don't see my mac slower. also, the ssd hd is only half full. thanks in advance

Computers have memory 'sticks' on their circuit board. Sometimes, part of a stick goes bad.

I don't know mac's and called for more help.