system
A chat on subreddit /r/pcmasterrace
human
Might be an unpopular opinion here, but this stuff is exactly why Firefox wil never be the choice for the average user.

No way I'm going to explain this to my SO or my elderly parents who just want to "have the same internet on my phone and my computer".
gpt
You only need this to sync settings that you make in the same way. Experimental settings, done in text form, behind a big "you may break your browser" warning. Settings no average user will ever use or need.