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Need help finding my old bookmarks on my hard drive that might have been erased when I did a reset Windows 10 install. Unfortunately, I had to restore my hard drive, and the Windows 10 tech advisor didn't tell me to save my Firefox bookmarks before I started the restore process. But the bookmarks might still be somewhere on my computer? And I don't think I ever created a Firefox account. So I don't think Firefox saved them.

Transferring bookmarks & backups for passwords is easy and I'm not worried about that. But the about:config settings that I have customized and accreted over years so that nothing beeps, spins, auto-plays, loops, or throbs a tab, are not so straightforward. I'd like to review what files I can save how to make sure I do not lose these, which are the most important things to me about my Firefox installs--keeping the web safe for quiet, nondistracting searches and reading.

Windows 10 Enterprise, managed by my organization, but with just enough admin privileges to customize my Firefox.

Good day,

Firefox Synchronization restores my old data as soon as I sign in, even though I do not push synchronization.

I have absolutely no power to decide what gets restored. I do not see any possibility to update the data stored on my Firefox profile online.

But the oddest behavior is that I opened a new account from another PC in order to save my actual Firefox data. I then synchronized my data from the first PC with the new account, and this time, instead of overwriting my local data from my new account, it is the data from the new account that got overwritten from my local profile containing the old data.

To sum up things, it seems that:

- I cannot choose what gets saved or restored neither on my PC locally nor on my Firefox profile online.

- When I synchronize Firefox, my data gets randomly overwritten either on my PC locally or on my profile online, without giving me the choice to either backup or restore these data.

Is there any way to avoid this ? And how do I choose if synchronization overwrite my local profile from my online one or the other way round ?

Hi, A few weeks ago, I wanted to sync my open Firefox tabs between my old laptop and my new one. I signed in to my Mozilla account on both computers, and the sync process worked just fine. For weeks, my synced tabs appeared in my Firefox sidebar on my new laptop, and all was good. However, the other day, I had to restart my computer a few times, and when I open Firefox again, my synced tabs were gone. On my Mozilla account page, it still says that I am signed in to my old laptop. How can I see my synced tabs again? Thank you very much for your help!

How could i restore the bookmarks that i mistakenly deleted? Going back to the sync from 2 weeks ago, I don't have any of my bookmarks at all, I don't have them locally saved, the deletion happened before I reinstalled the operating system

Thanks to a Microsoft update my PC had to have Windows reinstalled causing me to lose all my apps. I have reinstalled Firefox on the PC but of course, all my bookmarks and passwords are missing. I had set up syncing between my PC and my Android mobile devices (phone and tablet). Can I restore or sync from the mobile device back to the PC? I have searched and found nothing. Even when signed into Firefox on the phone, it does not bring up "Sync" when I go to settings. I truly appreciate your help.

All of my desktop bookmarks are on mobile, but after resetting my password they won't sync back to my desktop. I can't even access them from my desktop, despite browsing data still being clearly accessible. I have 10 years of bookmarks on my mobile device that for whatever reason now will not transfer to my desktop firefox no matter what I try. Since there's no way to manually export to xml on mobile I have no way of accessing these and I am at risk of losing 10 years of bookmarks, many of which are vital to the work I do.

I am trying to preserve my POCKET data before it all goes away. Mozilla responded to my email requesting data but when I opened the link I got this message that "the provided token has expired : despite it being less than 24 hours. Plus a lot of other characters meaningless to me. What can I do now?

This XML file does not appear to have any style information associated with it. The document tree is shown below. <Error> ExpiredToken <Message>The provided token has expired.</Message> <Token-0>

After a routine system restart due to display driver crash my Mozilla Firefox ceased to work, displaying a broken link. After some messing around I decided to reinstall the application, but when I did it was an entirely new instance with none of my local saved data (bookmarks, passwords, history etc). I've been able to restore my bookmarks, but not my passwords. I've found the relevant key4.db and logins.json files pertaining to the older intall, but I have no idea how (if possible) to install them, and I assume there would only be a compiled csv if I created it.

Help!

Hi,

I have logged in in a new device with my firefox account and I can´t see anything of my backed up data.

Passwords, bookmarks, pluggins are gone... And I checked before that I had my sync on and everything was synced.

Before that, I added a secondary email and then put it as primary. Could you please check?

Hi! I am very grateful to anyone who can help me. I re installed windows 11 on my PC and when I reinstall firefox it seems as if the firefox account info is at zeros. Reading after this problem it seems that prior to doing these full re installs firefox requires a backup process but I did not do it at the time even though sync was constantly active. Is there any way to recover all the information from the last sync prior to reinstalling windows?

I have several collections in Firefox on my old phone, things I use regularly. It's the only way to save websites on the phone, so I assumed this would sync to my new phone.

I can see an archived thread about this from 2022, is it really not possible to sync these? It seems bizarre to offer the capability to bookmark sites, but not allow it to live with you.

Will it ever be possible? Or should I stop relying on this feature? The main collection I use frequently is one for recipes.

Hi all. I recently had a terminal problem on my Win 10 computer so have bought a new Win 11 machine. I ran Firefox on the old Win 10, had 5 email accounts, had about 12 local folders and had my Profile stored in a folder on the desktop. The folder was moved there some years ago but don 't remember how I did it. I moved it there because this folder gets backed up every night.

So, I have managed to remove the HDD from my old machine and have located the 'old' profile folder. I now need to re-install Firefox on the new machine and match it up to my old profile folder (I think...)

Any advice on how to do that?

Regards

Steve

Hi, I have an issue and hopefully an easy challenge, but I need and would appreciate your kind help.

My Windows 10 PC with Firefox Desktop installed has all my bookmarks, passwords, add-ons, configuration entries, etc. I had the unfortunate situation where my PC hard drive boot-up is corrupted, so I am unable to boot into windows. I am though able to access all of the files intact, via a USB Hard Drive dock to read, save, and be able to transfer any files from that non-bootable hard drive to a new install.

I did a new windows install with a brand new hard drive along with Firefox, but I need your help to effectively get all of those files/entries from the old hard drive and my Firefox "profile" transferred into the new drive so I can resume like before, and further back up as necessary. I do understand that I should have logged into my Firefox account and backed it up so it would have been seamless, but I am sorry I didn't.

Can you please help me and advise?

Thank you so very much.!

So. I fired up the computer this morning. A new one, just got it in September. I have used saved passwords for many years. You have to use the primary password (was master password) to get to that file.

Except now I can't. I get a blurry screen with a banner across the top telling me to log in. But when I click on the "log in" button, nothing happens. If I click the X to close that banner, it does close. And there's various links left on the blurred screen. "Learn more", "passwords support", "import passwords from another browser" or "from a file". But none of those links work. Nothing happens when I click them.

When it says "Log in", I don't even know what I'm supposed to log in to. I don't get a chance to give the primary password. Logging onto Mozilla hasn't made a difference.

So now, I don't have access to ANY of my passwords. WTF Firefox? Can anybody help me? Will anybody help me?

I managed to get to my password because I'm on a new laptop and have not discarded the old one yet. But that's hardly a solution - keeping an extra computer around to look up passwords. I have a few passwords which I put in an old fashioned Rolodex. Maybe I better do that for everything.

I'm elderly. I rarely use my computer away from home. I don't want or need this "sync" feature. After all these years, am I going to have to look for a new browser because of this FAIL? Or is there some way out of it? As it stands now, I have no idea how to get into sync, even if I did want it.

Where did this come from? It's totally out of the blue. WTF? Can I get past this problem? How?

I have created a new Firefox profile. Now I want to copy my settings of the Developer Tools to this new profile. This should also include the custom device settings for the Responsive Design Mode. Is there a file (or files) in the profile-folder that contains these settings, and can I copy this file (or files) to the new profile? I found this link about copying profile files, but it doesn't mention devtools settings.

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.