[Bug 1712978] [NEW] HTML5 issue in firefox while watching youtube videos

[sampath reddy]

Public bug reported:

if i open youtube it is asking like HTML5 sholud enable,

if i enable using firefox extentions , youtube working fine , but some other websites are not working .
they are asking for flash player .

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: firefox 55.0.2+build1-0ubuntu0.17.04.1
ProcVersionSignature: Ubuntu 4.10.0-32.36-generic 4.10.17
Uname: Linux 4.10.0-32-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.20.4-0ubuntu4.5
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/pcmC0D0p:   sam        1458 F...m pulseaudio
 /dev/snd/controlC0:  sam        1458 F.... pulseaudio
BuildID: 20170816204344
Channel: Unavailable
CurrentDesktop: Unity:Unity7
Date: Fri Aug 25 11:20:45 2017
Extensions: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
InstallationDate: Installed on 2017-08-22 (2 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
IpRoute:
 default via 192.168.0.1 dev wlp12s0 proto static metric 600 
 169.254.0.0/16 dev wlp12s0 scope link metric 1000 
 192.168.0.0/24 dev wlp12s0 proto kernel scope link src 192.168.0.3 metric 600
Locales: extensions.sqlite corrupt or missing
Plugins: Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so
PrefSources: prefs.js
ProcEnviron:
 LANGUAGE=en_IN:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_IN
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=55.0.2/20170816204344 (In use)
RunningIncompatibleAddons: False
SourcePackage: firefox
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/26/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A06
dmi.board.name: 047MWF
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA06:bd11/26/2010:svnDellInc.:pnVostro1015:pvr:rvnDellInc.:rn047MWF:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Vostro 1015
dmi.sys.vendor: Dell Inc.

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug zesty

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Title:
  HTML5  issue in firefox while watching youtube videos

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