E: The repository 'https://repo.fury.io/liri-browser Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
Please alter your repository so that it follows the above requirements.
Using apt update the following error occurs:
E: The repository 'https://repo.fury.io/liri-browser Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.
Please alter your repository so that it follows the above requirements.