Don't know the cause
- Shockwave Flash 31.0 r0
- User Agent: Mozilla/5.0 (Windows NT 10.0; rv:63.0) Gecko/20100101 Firefox/63.0
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. 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