ubuntu and chromium updates

For diagnostic purposes please provide the output of the commands (to be executed in a terminal window):

uname -a
lsb_release crid
dpkg -l | grep chrom

Ops, sorry, typo error, the commands should be

uname -a
lsb_release -crid
dpkg -l | grep chrom

Little note "chromium" is a game, "chromium-browser" is the web browser

uname -a
Linux sereste-Lenovo-G400 4.4.0-47-generic #68~14.04.1-Ubuntu SMP Wed Oct 26 19:42:11 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

 lsb_release -crid
Distributor ID: Ubuntu
Description: Ubuntu 14.04.5 LTS
Release: 14.04
Codename: trusty

What is the output of:

apt-cache policy chromium-browser

Thanks

again thank you for everything you are doing

chromium-browser:
   Installed: (none)
   Candidate: 53.0.2785.143-0ubuntu0.14.04.1.1145
   Table version:
      53.0.2785.143-0ubuntu0.14.04.1.1145 0
         500 http://archive.ubuntu.com/ubuntu/ trusty-updates / universe amd64 Packages
         500 http://archive.ubuntu.com/ubuntu/ trusty-security / universe amd64 Packages
      34.0.1847.116-0ubuntu2 0
         500 http://archive.ubuntu.com/ubuntu/ trusty / universe amd64 Packages

What is the output of

grep chrom /var/log/apt/history.log | tail

my thanks are real

Upgrade: gstreamer1.0-plugins-bad-faad:amd64 (1.2.4-1~ubuntu1, 1.2.4-1~ubuntu1.1), chromium-codecs-ffmpeg-extra:amd64 (53.0.2785.143-0ubuntu0.14.04.1.1142, 53.0.2785.143-0ubuntu0.14.04.1.1145), gstreamer0.10-plugins-bad:amd64 (0.10.23-7.2ubuntu1.2, 0.10.23-7.2ubuntu1.3), gstreamer1.0-plugins-bad:amd64 (1.2.4-1~ubuntu1, 1.2.4-1~ubuntu1.1), libgstreamer-plugins-bad0.10-0:amd64 (0.10.23-7.2ubuntu1.2, 0.10.23-7.2ubuntu1.3), gstreamer1.0-plugins-bad-videoparsers:amd64 (1.2.4-1~ubuntu1, 1.2.4-1~ubuntu1.1), libgstreamer-plugins-bad1.0-0:amd64 (1.2.4-1~ubuntu1, 1.2.4-1~ubuntu1.1)

ok, this shows that there was an update installed for chromium-codecs-ffmpeg-extra

This is a package that might be installed as recommended dependency of ubuntu-restricted-addons, even if chromium-browser itself is not installed.

What is the output of the command
apt-get --simulate purge chromium-codecs-ffmpeg-extra

Ciao boys you are really something thanks again and again i hope one day to be able to repay you in some way

Note: this is only a simulation.
apt-get needs the privileges of root for the normal execution.
Besides, the mechanism of block is not activated and it is not therefore useful to give importance to all of this for a real situation.
Reading list of the packets... Made Generation tree of the dependences Reading information on the state... Made The following packets you/they will Be removed:
chromium-codecs-ffmpeg-extra * 0 adjourned, 0 installed, 1 to be removed and 0 not adjourned.
Chromium-codecs-ffmpeg-extra Purg [53.0.2785.143-0ubuntu0.14.04.1.1145]

Your last output confirms my assumption:

You have - for whatever reason - installed the package chromium-codecs-ffmpeg-extra.
Whenever an update for the chromium browser is delivered, also this package will be updated.

I see the following two options:
1. leave the package installed as it is (and accept the future updates)
or
2. uninstall that package.

For additional diagnostics - what do you get for the commands

dpkg -l | grep chrom
apt-get --simulate autoremove

M anfred you are in part right in part wrong because the chromium browser update are suggested since i install ubuntu any way thank you for your time

-l | grep chrom
ii chromium-codecs-ffmpeg-extra 53.0.2785.143-0ubuntu0.14.04.1.1145 amd64 Extra ffmpeg codecs for the Chromium Browser
ii libchromaprint0:amd64 1.1-1 amd64 audio fingerprint library
ii unity-scope-chromiumbookmarks 0.1+13.10.20130723-0ubuntu1 all Chromium bookmarks scope for Unity
ii xserver-xorg-video-openchrome-lts-xenial 1:0.3.3+git20160310-1~trusty1 amd64 X.Org X server -- VIA display driver

apt-get --simulate autoremove
Note: this is only a simulation.
apt-get needs the privileges of root for the normal execution.
Besides, the mechanism of block is not activated and it is not therefore useful to give importance to all of this for a real situation.
Reading list of the packets... Fact
Generation tree of the dependences
Reading information on the state... Fact 0 adjourned, 0 installed, 0 to be removed and 0 not adjourned.

I do not have any information about the moment that chromium-codecs-ffmpeg-extra was first installed. It might have been there from the beginning, or maybe was installed later. If you interpret my previous comments in one way or the other - it was not my intention to make any comment on that.

Maybe a better wording would have been: There is - for whatever reason - the package chromium-codecs-ffmpeg-extra installed on your system.

Back to possible further steps, I see only the possibilities to
1. leave the package installed as it is (and accept the future updates)
or
2. uninstall that package.