Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

why do I need to set up sync when I only use 1 computer. A warning showed up that says: Sync encountered an error while connecting: Unknown error. Please try again.

more options

When I started up my computer this morning, a warning popped up saying: ! Sync encountered an error while connecting: Unknown error. Please try again.

Why do I need to set up Sync on Firefox when I only use this one computer and do not even have a cell phone?

When I started up my computer this morning, a warning popped up saying: ! Sync encountered an error while connecting: Unknown error. Please try again. Why do I need to set up Sync on Firefox when I only use this one computer and do not even have a cell phone?

All Replies (2)

more options

You don't really need Sync for one computer and no other devices. Sync is inactive until the user sets it up.

more options

If you do not want to use Firefox Sync any more, you can deactivate it. See instructions here: How do I choose what information to sync on Firefox?