Firefox Sync/Accounts Server

[Neiluj]

I would find this helpful.
Currently, I am using Syncthing to sync Librewolf portable between devices. However I still encounter regular conflicts - Nothing major, but just some annoyances I could do without. My biggest pain in this setup is the heavy limitation for cross platforming.
And so Firefox Sync would alleviate these pain points however minor or major they are. So would be welcome.