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I am trying to sync Firefox data to new computer. The Mozilla account only allows me to sync mobile devices. Online instructions do no match my version of Firefox 131.0.2, Ubuntu 24.04.

Dear Firefox,

I have just reinstalled my operating system after some issues. After reinstalling my browser, I logged into my browser after changing the password, but now no data is being synced. The open tabs, bookmarks and saved passwords were the most important, but none of that has synced back. After waiting for a little bit I decided to press the synchronize now button, but that also didn't do anything. Is there perhaps something wrong with the syncing right now? Or is there another way to get that data back? I didn't save it as I normally don't have to.

Thank you for your reply!

Kind regards, Lili

I use Firefox on Ubuntu Linux, and it works fine.

For unrelated reasons I have created a new Linux Mint 22 boot partition, and I would like to use the same Firefox profile on both Linux OS-s, without having to move or copy the existing profile I use on Ubuntu. (The profile is placed on a third independent data partition!) I cannot find any information on how to do it. All information I find involves moving the profile, but then Firefox on Ubuntu would not be able to continue to use it.

I look forward to hear from you. Thank you. :-)

We deploy Firefox via a software called Pulseway and last night it reinstalled Firefox over the current installation for one of our users. When he logged in this morning, all his data was missing from the browser as it appears to be a fresh installation. I'm unable to find his previous profile in the AppData folders (checked by going to about:profiles and opened each profile). There is no backup for this info, and he did not have a Sync account set up. Is there anywhere else I could possible recover this data for the user? Thanks in advance.

I’ve been using Firefox on my Mac without any issues, but I recently had to erase and reset my Mac. After reinstalling Firefox and attempting to sign in to my account, I am unable to sync my data.

When I click “Sign in” and enter my password, I successfully log in. However, it immediately returns to the message “Please sign in to reconnect,” and I am unable to proceed with syncing.

This is the first time I’ve encountered this issue.

On a positive note, I can still see my organized bookmarks on Firefox for iPhone, which were synced from my Mac before the reset.

I am using duck duck go. I was backing up stored settings and accidentally re-installed google. I cannot get duck back in mozilla settings--It says duck is my default, but moz opens to google. oops and help Thank you, Elsie [edited email]

Hello,

I accidentally disliked a thought-provoking story which involved the couple who died in the Lisbon funicular crash (as of Saturday 6th September 2025), which I think was addressed by The Independent.

Is it possible to reverse the dislike? The story does not seem to appear again, at least from what I have seen. Although the dislike was accidental, I felt that having the story disliked would indicate I would not be interested in thought-provoking stories about those who have died, even though these stories should be important to show.

Today I installed a clean WIN10 version on my PC, expecting to just log into firefox afterwards and have all the data back within minutes, but I forgot my Firefox password... As I'm currently in another country I also couldn't just log in on any of my other devices to recover the password, so I decided to reset it via the E-Mail... well aparantly changing your password deletes the sync data?? I'm guessing there is no way to recover the data? So I got a relative of mine to start my backup notebook which has not been synched for a few months but some data should've still been there, at least I had thought so... password database there was empty... and instead of synching the firefox landing page from my notebook where all my pinned pages were, it copied the page from the new device and wiped that as well... Any way to revert the sync changes on the notebook?

Hello, FireFox community!

I use FireFox on desktop at home, at work and on mobile.

Recently I made an account at home.

When I log in to my account at work and sync which bookmarks (and settings) will last?

Which is the primary device?

Will my work bookmarks be replaced by these from home PC or will be supplemented?

I will appreciate your help!

Best wishes!

I updated firefox, and all my addons and sign ins are gone now. Search history and tabs remained intact. It also created a folder on my desktop, but I'm not sure how do I "extract" my old data from it.

HI! I have my phone synced to my destop firefox, and just synced my laptop, microsoft windows 11.

everytime I want to access a synced page, like gmail, or my trading brokers page, it asks me to login again, so its synced, but have to relogin every time I open the firefox browser, or even when I simply close the tab. I never have to log in repeatedly on the desktop.

Also, my favourite extension Tab Stash, is missing features in this firefox browser. I have tested everything to get it to work, including clearing the cache, restarting. normally you can right click a firefox tab like the attached image, and choose "open Tab Stash in a Tab". and other options. but they dont show in this synced version of the browser. Very weird and frustrating. I must get this to work as I manage hundreds of saved tabs and folders through Tab Stash which is only available on Firefox.

I dont know how to contact the extension creator, I cant see any contact link on his gitHub.

I could not remember my pw today when trying to get bookmarks back on this computer, so reset, thinking I would otherwise be locked out --now I'm not seeing an option to sync bookmarks. I'd love to get back these bookmarks--a treasure trove of resources gathered over 9 years. Any help greatly appreciated!

I have just installed firefox on my new computer. I had firefox on my old computer and laptop that are both still running. It has pulled in a list of mostly obsolete accounts and passwords which are listed when I select "passwords" I did not ask firefox to do this. why has it done this. what else may it have done that I don't know about

I rebooted and launched FF, I was asked if I wanted to Refresh. Naturally I declined because I'm not an idiot. Now all my addons and passwords are gone. I would love to have them back since I never asked for them to be deleted. I don't have an "Old Firefox Data" or whatever folder on my desktop, would have been cool for them to leave that there when they clobbered years of data and customization because Firefox thinks they should have more control over my PC than I do, but they didn't. Is there any way to get these back?

I am currently running Firefox on Windows 11 (24 H2) and today, like I have usually done a lot over the past years I opened Firefox, did some browsing, then I quit the app. When I later opened Firefox (version 130.0.1 (64-bit)) no a single of my open windows got restored.

I have been relying on Previous session being restored. Today however, it did not work, and the option to use "hanburger menu" -> History -> Recently Closed Windows" do not show my windows I had open.

How can I find my old sessions? Can I restore them somehow from backed up data?

I had a number of tabs open when my phone rang. After the call I checked the browser, and most of the tabs were gone. Usually there is an option to "restore previous session" in History, but it is not there now. I would like to go back to that previous session. Is there a way to do that?

Hello,

I reinstalled Windows and Firefox at the same time, and as usual, I tried to sync my Firefox account. However, I can log in, but I get automatically logged out. I've tried several times, but I can't stay logged in to sync. Do you have any ideas? I'm using Windows 11 (10.0.26100) and Firefox 131.0.3 (64-bit).

Thank you very much!

Sam