How to solve the problem that video content cannot be played on Firefox for Linux


I encountered a problem that video content such as Twitter could not be played on Firefox, which is installed by default when installing Ubuntu. Therefore, this time, I will describe the solution to the problem.


OS: Ubuntu 20.04.1 LTS x86_64 DE: GNOME


In conclusion, I could solve it by removing Firefox from the standard and installing it officially.


Step1: FlatPak setup

sudo apt install flatpak

I used flatpak for the first time this time, and it seems that this is a new package format for Linux. Use it to download a new Firefox.

Step2: Download Firefox flatpakref

Go to the URL above and press INSTALL Download the file org.mozilla.firefox.flatpakref.


Step3: Uninstall standard Firefox

sudo apt remove firefox

Step4: Install Firefox using Flatpak

flatpak install ./org.mozilla.firefox.flatpakref

cd /var/lib/flatpak/exports/share/applications

sudo desktop-file-install org.mozilla.firefox.desktop

This completes the installation. If firefox is not displayed from the GUI When I logged out and logged in again, the display was confirmed.


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