It's a great way to set up Firefox on a new device. Why wouldn't I want to install the same extensions and copy my bookmarks? I wish it also synced toolbar layout so I wouldn't have to remove those weird spacers Firefox adds around the address bar by default every time
No. Not for any good reason though... I just don't need it.
Firstly, I use LibreWolf rather than Firefox. It still has Sync but it's disabled by default and I've just never felt any interest in enabling it.
I use KeepassXC for passwords, so I don't need Firefox to sync those.
I don't use bookmarks. I don't have an amazing memory or whatever I've just always found it more convenient to just search for whatever I'm trying to find, whether that's searching my history or google or whatever. Like how do you organise bookmarks? Trying to categorise pages that I may wish to refer to in the future would drive me nuts. I do use Zotero which is similar to bookmarks but only for academic research.
Even transferring things between devices. That might be nice but seriously I just search for whatever it was I was looking at on whatever other device.
All that remains is addons and themes and honestly it's kinda nice to start with a clean slate on every new desktop and add in themes and addons. Only takes a minute.
I tried it at two separate times, and both times it would delete my tabs when I add a new device to sync. Maybe I used it wrong, but it just aggravated me to disable it quickly.
I use it, but when I experimented with data synchronization using Firefox Sync, it simply doesn't work, it is so unreliable and unpredictable that you can't bet on it. It's a real pity, because I wanted to use it for a cool thing, synchronizing data of one website, without having my own server for that website. It failed because Firefox Sync fails.
(Not OP) I have no beef with Mozilla, love Firefox.
I once accidentally bookmarked some porn instead of opening it into a new tab. It happened on mobile, it happend fast, I barely noticed. It directly synced to all my devices. Even after removing the bookmark itself, Firefox kept suggesting this "last bookmarked page" on all my devices. Annoying if you alone know about it, disastrous if you don't know who knows about it.
I don't. I prefer writing down my passwords on a little notebook. It's ironic as hell that a "coded" paper note at my own home is more secure than anything on my computer
all your favorite extensions are already inatalled and synced (including custom filters in uBO)
I'm vanilla as hell, I just use default uBO and sometimes NoScript. To me, sync offers nothing of value.
I sync bookmarks, extensions and browsing history. I do not sync autofill or passwords.
Credit cards are never saved to anything.
I use KeePass for Passwords.