I wonder if they’re using my data to something or spying on me.
Because I use Firefox Sync to sync mostly my history. I don’t have bookmarks, I just remember what site I want to access by its URL then I start typing and the autocomplete do the rest.
For example, to access Lemmy I just type “le” because the only site I most access and starts with “le” is “lemmy.world”. Rarely I get some conflict on this approach. And it works on both my phone and desktop.
I wonder if should I change this approach to avoid Firefox Sync or I can trust on Firefox Sync.
I would say the feature is quite easily avoidable, as it only seems to require one manual visit, for it to show in the suggestions; which I believe are sorted based on interactions with pages (so just interact more with pages, you want to be suggested more strongly). I would personally advise against using the feature, primarily because it ties all browsers, on multiple separate devices, to a common Mozilla account. So why broaden your attack surface, for advantages easily reproduced manually? Is the little bit of added convenience, worth the (potential) trade-off?