In firefox 41.0, running with a fresh profile, (both on 12.04 and 15.04), the instant messaging in "hello" in firefox does not seem to be working properly.
The video and audio connections work correctly, but the instant messaging is one-sided. The receiver of the call (who can be using any webrtc-compatible browser) can send messages and view the sent and received messages, but the initiator of the call (who has to be using firefox) can only send messages, without being able to see the message history (including none of the messages sent by the other person). In addition, when the initiator sends their messages, by pressing enter, they don't disappear, as in any normal messaging program, but persist in the entry field (however, they are received by the other side.)
With firefox 41.0 directly downloaded from Mozilla's website, the instant messaging works correctly (both sides can send messages and view the message history).
(Note for ease of testing, in case it's helpful:
One can connect to (i.e. open the conversation link in) the same instance of firefox, on the same computer, but in a new tab. Obviously I had detected the above bug also when connecting to another computer.)
41.0+build3-0ubuntu0.15.04.1
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: firefox 41.0+build3-0ubuntu0.15.04.1
ProcVersionSignature: Ubuntu 3.19.0-28.30-generic 3.19.8-ckt5
Uname: Linux 3.19.0-28-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.17.2-0ubuntu1.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: adam 1621 F.... pulseaudio
BuildID: 20150918100231
Channel: Unavailable
CurrentDesktop: Unity
Date: Wed Sep 23 16:28:10 2015
DefaultProfileExtensions: extensions.sqlite corrupt or missing
DefaultProfileIncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
DefaultProfileLocales: extensions.sqlite corrupt or missing
DefaultProfilePlugins:
Gnome Shell Integration - /usr/lib/mozilla/plugins/libgnome-shell-browser-plugin.so (gnome-shell)
iTunes Application Detector - /usr/lib/mozilla/plugins/librhythmbox-itms-detection-plugin.so (rhythmbox-mozilla)
Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so
DefaultProfilePrefSources: prefs.js
DefaultProfileThemes: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2015-05-16 (130 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
IpRoute:
default via 192.168.0.1 dev wlan0 proto static metric 1024
169.254.0.0/16 dev wlan0 scope link metric 1000
192.168.0.0/24 dev wlan0 proto kernel scope link src 192.168.0.13
Profile0Extensions: extensions.sqlite corrupt or missing
Profile0IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
Profile0Locales: extensions.sqlite corrupt or missing
Profile0Plugins:
Gnome Shell Integration - /usr/lib/mozilla/plugins/libgnome-shell-browser-plugin.so (gnome-shell)
iTunes Application Detector - /usr/lib/mozilla/plugins/librhythmbox-itms-detection-plugin.so (rhythmbox-mozilla)
Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so
Profile0PrefSources: prefs.js
Profile0Themes: extensions.sqlite corrupt or missing
Profiles:
Profile0 - LastVersion=41.0/20150918100231
Profile1 (Default) - LastVersion=41.0/20150918100231
RelatedPackageVersions:
gnome-shell 3.14.4-0ubuntu1
rhythmbox-mozilla 3.1-1ubuntu3
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/03/2009
dmi.bios.vendor: Intel Corp.
dmi.bios.version: ECG3510M.86A.0112.2009.0203.1136
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: DG35EC
dmi.board.vendor: Intel Corporation
dmi.board.version: AAE29266-210
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorp.:bvrECG3510M.86A.0112.2009.0203.1136:bd02/03/2009:svn:pn:pvr:rvnIntelCorporation:rnDG35EC:rvrAAE29266-210:cvn:ct3:cvr:
Status changed to 'Confirmed' because the bug affects multiple users.