We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

I lost all my data after changing devices even though it was synced

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

SondosA
SondosA
more options

I've lost all bookmarks, logins and saved passwords, add ons and basically everything. I have made sure that all my data is synced and even tested it a couple of times after changing devices and every time it worked perfectly and restored my data. Now, I've just changed devices after a while with no internet, I go to sign in and I forgot my pass so I reset it and signed in successfully but nothing at all is restored not a single thing. I'm devastated, I hope there a solution to this.

I've lost all bookmarks, logins and saved passwords, add ons and basically everything. I have made sure that all my data is synced and even tested it a couple of times after changing devices and every time it worked perfectly and restored my data. Now, I've just changed devices after a while with no internet, I go to sign in and I forgot my pass so I reset it and signed in successfully but nothing at all is restored not a single thing. I'm devastated, I hope there a solution to this.

Chosen solution

Resetting the sync password, or changing its e-mail, will remove all data from the servers.

This is a security feature. https://support.mozilla.org/en-US/kb/ive-lost-my-firefox-sync-account-information

  • I've lost my Firefox Sync account information - What to do
  • I’ve forgotten, or don't have access to, my Firefox Account email address
Read this answer in context 👍 1

All Replies (7)

FredMcD
FredMcD
more options

Chosen Solution

Resetting the sync password, or changing its e-mail, will remove all data from the servers.

This is a security feature. https://support.mozilla.org/en-US/kb/ive-lost-my-firefox-sync-account-information

  • I've lost my Firefox Sync account information - What to do
  • I’ve forgotten, or don't have access to, my Firefox Account email address
FredMcD
FredMcD
more options

Look on your desktop. Do you see a folder called; Old Firefox? Look inside. Look for the folder with the latest creation date.

https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile

https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles

https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible

doc2055
doc2055
more options

PLEASE PLEASE HELP -- I love Firefox and after 3 hours of reading and looping and looping I cannot get any of my data or an old profile [10yrs+] or anything.... so stressed and sad. I am not good with this and need to TALK to a HUMAN, please!!!

doc2055
doc2055
more options

I found the profile folder.. but HAVE NO IDEA what to do from there.

FredMcD
FredMcD
more options

doc2055 Please explain the problem in detail. What happens? What are the exact error message(s) ?

doc2055
doc2055
more options

Hi - Thank you!! Well, I cannot seem to find the place where there was a "please provide content" message near the top of the page again. But when I follow the instruction "troubleshooting" from the Help dropdown list, and I have the long long list in the troubleshooting information window - there are 2 boxes "show in finder." 1st is "update folder" - yields a "Firefox" in an "Applications" window

2nd is "profile folder"- yields a "Profile" window.

There are no further instructions as to what to do with either of these to bring back my old profile which was unchanged for several years. Every single time I opened Firefox pretty much every day, all of my pinned addresses and every other pocket and all the traces of my weeks of travels were right there for me. I do still find all the months of web history travels available but not sure how to see if this can bring back my full Firefox home page like it always was.

Thank you Fred! doc

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Hi doc2055

It looks that you are using a Mac (Show in Finder) and the OP that created this thread is using a Windows computer. The OP also hasn't responded yet.

So to avoid confusion, could you please start a new thread for your question?

EDIT: I should have checked it, but I see that you already created a new thread, so please continue there.

  • /questions/1278112 Lost all of my firefox data and after 3 hours of searching still cannot figure out even the first step because all answers are looping and looping HELP PLEASE!!

Modified by cor-el