Firefox man page is severely out of date

[To]

On Ubuntu 16.04 (LTS) the manpage for Firefox reports a date of 2011-02-09 (!)

The man page mentions the -private flag, which has been replaced by --private-window quite some time ago and to make matters worse, -private actually _breaks the private mode_ until firefox gets restarted.

firefox --help shows the new flags that are available.

The report on Mozilla's bugtracker has been dismissed, because the man page is apparently distro-provided. (https://bugzilla.mozilla.org/show_bug.cgi?id=1381866)

A bug has also been filed for Fedora 26 (man page date 2001) here: https://bugzilla.redhat.com/show_bug.cgi?id=1334025

[To (girst)]

I've written a man page, starting from Fedora's. see--> https://bugzilla.redhat.com/attachment.cgi?id=1360974

[To (girst)]

I made a small adjustment to the man page (dropped mozilla(1) from "see also") --> https://bugzilla.redhat.com/attachment.cgi?id=1362629

[To (girst)]

finally noticed the attachment button, apologies for cluttering the bugreport

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[To (girst)]

I've updated the man page from fx57 to fx68. please include the attached
new version