Install Vivaldi within Linux Mint

One method to install the web browser Vivaldi within Linux Mint is via the commands below.

sudo apt install wget gnupg2 software-properties-common

sudo wget -qO- https://repo.vivaldi.com/archive/linux_signing_key.pub | sudo apt-key add -

sudo echo 'deb https://repo.vivaldi.com/archive/deb/ stable main' | sudo tee /etc/apt/sources.list.d/vivaldi.list

sudo apt update

sudo apt install vivaldi-stable

Per https://help.vivaldi.com/article/html5-proprietary-media-on-linux/, an additional command may be required to view certain video content.

sudo /opt/vivaldi/update-ffmpeg

Portable version option with Vivaldi

Within the Vivaldi web browser installer, an option is available to use a standalone portable version.  Within the initial dialog box, click on the Advanced button.

Select Install standalone under the Installation Type drop-down menu.

To update the standalone version, use the  Help -> Check for Updates.