Bug#861568: firefox-esr: freezes when I try to open youtube video

[Warlock]

Package: firefox-esr
Version: 45.9.0esr-1
Severity: normal

Dear Maintainer,

firefox freezes when I try to open youtube video or select item from search box popup in youtube main page. I have tried to use safe mode, but problem have not disappear.

-- Package-specific info:

-- Extensions information
Name: Adblock Latitude
Location: ${PROFILE_EXTENSIONS}/{016acf6d-e5c0-4768-9376-3763d1ad1978}.xpi
Status: app-disabled

Name: Dark Moon theme
Location: ${PROFILE_EXTENSIONS}/darkmoon at lootyhoof-pm.xpi
Status: app-disabled

Name: Default theme
Location: /usr/lib/firefox-esr/browser/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}.xpi
Package: firefox-esr
Status: enabled

Name: Firefox Hello Beta
Location: ${PROFILE_EXTENSIONS}/loop at mozilla.org.xpi
Status: enabled

Name: uBlock Origin
Location: ${PROFILE_EXTENSIONS}/uBlock0 at raymondhill.net.xpi
Status: enabled

-- Plugins information
Name: IcedTea-Web Plugin (using IcedTea-Web 1.6.2 (1.6.2-3.1))
Location: /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so
Package: icedtea-8-plugin:amd64
Status: enabled


-- Addons package information
ii  firefox-esr    45.9.0esr-1  amd64        Mozilla Firefox web browser - Ext
ii  icedtea-8-plug 1.6.2-3.1    amd64        web browser plugin based on OpenJ

-- System Information:
Debian Release: 9.0
  APT prefers testing
  APT policy: (500, 'testing'), (500, 'stable')
Architecture: amd64
 (x86_64)

Kernel: Linux 4.10.12 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages firefox-esr depends on:
ii  debianutils               4.8.1
ii  fontconfig                2.11.0-6.7+b1
ii  libasound2                1.1.3-5
ii  libatk1.0-0               2.22.0-1
ii  libc6                     2.24-10
ii  libcairo2                 1.14.8-1
ii  libdbus-1-3               1.10.18-1
ii  libdbus-glib-1-2          0.108-2
ii  libevent-2.0-5            2.0.21-stable-3
ii  libffi6                   3.2.1-6
ii  libfontconfig1            2.11.0-6.7+b1
ii  libfreetype6              2.6.3-3.1
ii  libgcc1                   1:6.3.0-14
ii  libgdk-pixbuf2.0-0        2.36.5-2
ii  libglib2.0-0              2.50.3-2
ii  libgtk2.0-0               2.24.31-2
ii  libhunspell-1.4-0         1.4.1-2+b2
ii  libnspr4                  2:4.12-6
ii  libnss3                   2:3.26.2-1
ii  libpango-1.0-0            1.40.5-1
ii  libsqlite3-0              3.16.2-3
ii  libstartup-notification0  0.12-4+b2
ii  libstdc++6                6.3.0-14
ii  libvpx4                   1.6.1-3
ii  libx11-6                  2:1.6.4-3
ii  libxcomposite1            1:0.4.4-2
ii  libxdamage1               1:1.1.4-2+b3
ii  libxext6                  2:1.3.3-1+b2
ii  libxfixes3                1:5.0.3-1
ii  libxrender1               1:0.9.10-1
ii  libxt6                    1:1.1.5-1
ii  procps                    2:3.3.12-3
ii  zlib1g                    1:1.2.8.dfsg-5

Versions of packages firefox-esr recommends:
ii  gstreamer1.0-libav         1.10.4-1
ii  gstreamer1.0-plugins-good  1.10.4-1

Versions of packages firefox-esr suggests:
ii  fonts-lmodern          2.004.5-3
pn  fonts-stix | otf-stix  <none>
ii  libcanberra0           0.30-3
pn  libgnomeui-0           <none>
ii  libgssapi-krb5-2       1.15-1
pn  mozplugger             <none>

-- no debconf information