Ask HN: Is anyone successfully self-hosting Firefox Sync?
> However, I do not want to risk storing absolutely sensitive data (browsing history, auth cookies, credentials, etc) at some third party.<p>FWIW Firefox says they do not have the capability to read your data: <a href="https://hacks.mozilla.org/2018/11/firefox-sync-privacy/" rel="nofollow">https://hacks.mozilla.org/2018/11/firefox-sync-privacy/</a>