There is new update of rtmpdumphelper 1.22.
Helper 1.22 64bit works well with firefox 60 64bit.
Screenshot here was made in that setup, with original user agent.
If some sites don't work change browser's user agent to ie11, windows 7.
http://www.nirsoft.net/utils/rtmp_dump_helper.html
https://addons.mozilla.org/en-GB/fir...er/?src=search
Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko
Helper doesn't work if rtmp stream is over websocket protocol, namely LiveJasmin.
In that case run an old browser 32 bit that doesn't support html5 and helper 32bit.
