Switching from Chromium back to Firefox. Everything seems to work, including YouTube and Instagram videos, but Twitter videos do not.
Here's an example Twitter video: https://twitter.com/openbsd_br/status/860105420374933504 I see the thumbnail for the video and the play button in the middle. When I press the play button it turns into a throbber. If I scrub through the video I can see the individual frames, and can even drag the mouse through the scrubber so that it looks animated (but without audio). The about:addons page presents one addon: "OpenH264 Video Codec provided by Cisco Systems, Inc.". It has the message above it in yellow: "OpenH264 Video Codec provided by Cisco Systems, Inc. will be installed shortly." In about:config I have enabled media.peerconnection.video.h264_enabled . Have others gotten Twitter videos to play in Firefox? Is there something I've missed? $ dmesg|head -1 OpenBSD 6.2-beta (RAMDISK_CD) #66: Sun Sep 3 10:02:07 MDT 2017 $ pkg_info -I firefox firefox-55.0.3 Mozilla web browser $ pkg_info | egrep 'gstreamer|ffmpeg' ffmpeg-20170825 audio/video converter and streamer ffmpegthumbnailer-2.0.8p5 lightweight video thumbnailer for file managers gstreamer-0.10.36p10 framework for streaming media gstreamer-ffmpeg-0.10.13p12 ffmpeg element for GStreamer gstreamer-plugins-bad-0.10.23p26 bad elements for GStreamer gstreamer-plugins-base-0.10.36p15 base elements for GStreamer gstreamer-plugins-good-0.10.31p20v0 good elements for GStreamer gstreamer-plugins-ugly-0.10.19p8 ugly elements for GStreamer gstreamer1-1.12.2 framework for streaming media gstreamer1-plugins-bad-1.12.2p0 bad elements for GStreamer gstreamer1-plugins-base-1.12.2 base elements for GStreamer gstreamer1-plugins-good-1.12.2p0 good elements for GStreamer gstreamer1-plugins-libav-1.12.2 ffmpeg elements for GStreamer gstreamer1mm-1.8.0p3 C++ bindings for GStreamer py-gstreamer-0.10.22p6 Python bindings for GStreamer
