Following video of thelinuxexperiment and all the news against mozilla.
I finally switched to librewolf completely.
I exported and imported all kind of data too.

But I want to use ffsync only to keep my mobile (android) in sync with my pc (want to sync history also so flocuss etc will not work)
So I want to enable ffsync in librewolf

I have seen faq but as mozilla recently introduced their terms of usage (and all the hate against it)
Is it still private enough to use ffsync? what can be downsides?