Usually this is the main reason and I had to do the same for librewolf. And if I am not mistaken if you are hardening FF you need to make sure you are not blocking native messaging capabilities, IIRC flatpaks might also have similar “issues”.

Star Wars: The Old Republic. I don’t care about all the MMO stuff, but every time I watch or read something star-wars-related, I want to fire it up, get the one month subscription, and go on with some single-player story I need to finish. This happens twice a year more or less.

There’s also Strongbox available for ios