While it does not answer your question directly (sorry), my suggestion would be to just use Firefox for everything. Setting up PWAs in Firefox requires a small amount of preparation work, but once the extension and runtime are installed it's all pretty smooth.
Linux
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
Rules
- Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
- No misinformation
- No NSFW content
- No hate speech, bigotry, etc
Related Communities
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
If you mean that extension, that doesnt work. It downloads a separate firefox binary and creates a separate profile for each app with customized CSS.
It is very nice and I will try to recreate it using Librewolf Flatpak, but I wouldnt (and cant) use that app currently, as my system hard hardened_malloc as memory allocator which breaks Firefox. Either compile it with a custom parameter or use the flatpak and remove that env variable.