I'll look to the attaches about:support as soon as I can to see if there is anything useful, in the meantime here is a screenshot that shows were that Browser Console option is.
Bug 1699675 Comment 13 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
I'll look to the attached about:support details as soon as I can and see if there is anything useful, in the meantime here is a screenshot that shows were that Browser Console option is.