I want to sync things between 2 computers and apparently the only way to do this is to login to Firefox. Preferably I want to avoid tracking and stuff but sometimes it’s just a bit inconvenient. Is Mozilla trustworthy in terms of privacy with logging in, like data sales, especially data breach with passwords?
The data is encrypted, so not even Mozilla can see the data you sync, and Mozilla is also generally pretty trustworthy, so in terms of privacy, its fine.
For passwords, its probably not as secure as trusted dedicated password managers like Bitwarden. I just use Firefox for syncing bookmarks and sometimes tabs, and Bitwarden for passwords and things like that.
Mozilla doesn’t sell your data, and I’ve never heard any news about Firefox Sync having a breach, your data is safe from attackers and Mozilla themselves with Sync.
https://support.mozilla.org/en-US/kb/how-firefox-sync-keeps-your-data-safe-even-if-tls-fails
I trust personally trust them but if you don’t, you can self host the sync server if I’m not mistaken.