I am unable to play videos in facebook or bbc iplayer. I am using firefox as my browser. In facebook,the video looks just the same after I press "play" as before. Its as though I have not pressed play at all. In bbc iplayer I get the message "this content doesn't seem to be working. Please try again later". I have tried several suggestions from this site including:
$ sudo apt-get install gnome-tweaks $ sudo apt-get install libdvdnav4 libdvdread4 gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly libdvd-pk $ sudo apt-get install ubuntu-restricted-extras
Each time I get the following error message and have no idea what it means:
Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 4730 (apt-get) N: Be aware that removing the lock file is not a solution and may break your system. E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?
Please note, I am not an experienced linux user and my knowledge of coding and using the command terminal is very limited (the sudo commands I used above were copy pasted from similar problems posted on this website). I would therefore appreciate any explanations in clear, plain english, assuming no knowledge of coding or even how video enablement works in linux. Thank you