![](/static/253f0d9b/assets/icons/icon-96x96.png)
![](https://lemmy.ml/pictrs/image/h1ChnLuBHr.png)
In addition, if you use user.js then you essentially cannot change those settings at runtime (via about:config or otherwise), because your user.js will override the settings on next startup. Maybe that’s desired for some, but good to keep in mind nonetheless.
I don’t think that could work. Not unless we are talking about different things, or unless you run their updater script everytime before starting Firefox.