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

When two PCs are synced does all info from both PCs end up on both PCs or is just the data from the PC that initiates sync go to the PC that is paired with it?

  • 2 replies
  • 1 has this problem
  • 4 views
  • Last reply by cor-el

more options

I have an old PC has lots of bookmarks that I want to sync with a new PC. Unfortunately, the old PC will not display captcha so I cannot use it to initiate a sync account (no captcha display is a separate problem that I have had for a long time on the old PC and none of the fixes in the forums solve that problem.) The new PC displays captcha OK (same OS, same configs as old PC but it works - go figure.) If I initiate sync from the new PC and then pair with old PC will the bookmarks, etc. from the old PC migrate to the new PC? Or will the handful of bookmarks I have already set up on the new PC migrate to the old PC? Or will both PCs end up with everything? Seems like a simple question but there is nothing in the forums or Help pages about what actually happens when two (or more) devices and paired.

I have an old PC has lots of bookmarks that I want to sync with a new PC. Unfortunately, the old PC will not display captcha so I cannot use it to initiate a sync account (no captcha display is a separate problem that I have had for a long time on the old PC and none of the fixes in the forums solve that problem.) The new PC displays captcha OK (same OS, same configs as old PC but it works - go figure.) If I initiate sync from the new PC and then pair with old PC will the bookmarks, etc. from the old PC migrate to the new PC? Or will the handful of bookmarks I have already set up on the new PC migrate to the old PC? Or will both PCs end up with everything? Seems like a simple question but there is nothing in the forums or Help pages about what actually happens when two (or more) devices and paired.

All Replies (2)

more options

hello ralph, i think the short answer is: both pcs will end up with everything.

more options

You can set what happens with the first sync via the Sync Options.

  • Merge this device's data with my Sync data
  • Replace all data on this device with my Sync data
  • Replace all other devices with this device's data

The default is "Merge this device's data with my Sync data"