I installed this add-on after reading a Mozilla Developer Network article about Progressive Web Applications. I have a disdain for monopolies, so this allowed me to use a semi-officially endorsed method to install web apps via Firefox instead of using a Chromium based web browser. Perhaps someday Mozilla will decide to directly incorporate this extension as an integral component of Firefox.

All the web apps I have installed (some on Windows 11, some on Fedora, some on Debian) work as expected with no noticeable glitches.