

Stow cannot do this as far as I know. Chezmoi can though you’ll need to fiddle with templates and ignores to achieve it:
However as others have said a dotfile manager may not be appropriate for all apps. It assumes a certain kind of behaviour of the app - known config locations, text files etc.
I think your suggestion to backup/clone/restore your ideal Firefox config onto new machines is probably most practical if you do want to use a dotfile manager with it. That way you ensure the dir name is the same across all machines. Then you can use stow to manage parts of the profile going forward.
I would consider FF’s own sync solution also though - I believe you can self-host it too.







There’s an unofficial desktop version of Newpipe now it seems:
https://flathub.org/en/apps/net.newpipe.NewPipe
I’ve not tried desktop but I do use it on Android. Taps to the left\right advance video in multiples of 10s. Dragging vertically on left/right adjusts volume and brightness. It’s a pretty decent touch interface I’d say.