Firefox Community Forum

I am trying to restore my firefox bookmarks and passwords from a back up I saved. I am signed into firefox in my browser, I go to restore back up and firefox restars and my bookmarks appearm but I'm signed out of firefox. When I sign back in, my profiles and bookmarks disappear?

After a update 154.0.1 and 155.0.1, 64 byt Firefox dod not keep the open tabs once started, but the bookmarks. After searching in Firefox help, neither I could not find a previous bakup folder, before the update data, so I cannot restore the history it manually, so I do not know what to do. It is quite dissapointing as I had dozens of tabs open for diferent putposes, and now I have no one

1- Firefox shows I have windows 10. Not so. I have windows 11 home, version 25H2. This may be problem that causes the issues. 2- Since Update months ago, profiles, bookmarks and passwords disappear constantly only for me to replace manually the bookmarks and passwords to disappear over and over again. Don't need multiple profiles just one that works as in the good old days. Used it for years but cannot find help and ready to delete and just use microsoft edge. Totally out of patience. ?????????????????????????????????????????????????????????????????????

Every few days, when I start Firefox, my bookmarks load, but they are non-functional, and the logos to the left of each bookmark name are missing. I can restore previous days sessions, but I lose all of my saved log-ins to frequently visited sites. Why is this happening?

Running Windows 11. Firefox was running at the time the hard drive crashed. When installing FF on the new drive, found the last profile folder set to parent.lock. Since it's the entire folder, I can't see which of the files in the profile were locked. I have a backup of two weeks prior (separate issue -- I was unaware my nightly backups weren't working for two weeks), but I'd like to recover the bookmark and password changes in that time.

Is there a way to get into the folder, or do I just need to accept the loss and go with the previous backup?

Every time I go into firefox there seems to be another update to download. I conform to ensure I'm up to date. The latest has changed my display to a basic display. All my bookmarks are gone. I cannot access the back up file on my W11 computer. I have a new android phone and I installed firefox on that, but I have yet to use the application as a browser, on that phone. I tried to recover from the phone, but it does not give me the options to select to follow the steps firefox says I should take. It does not allow me to scan the QR code. I desperately need my bookmarks. If I go to the help, obviously others have the same problem. I see the questions but no answers, I am signed in. I have been trying now for 2 hours. Please help. Jill

Why does Firefox do this? Its not the first time this has happened to me, but now I'm lost.

After a recent Firefox update, all of my saved passwords disappeared.

I checked my Firefox profiles and found that the current `logins.json` and `logins-backup.json` files were newly created on August 30, 2026 and contain no passwords.

However, in the older profile data I still have:

• `logins.db` — approximately 480 KB, modified August 19, 2026
• `key4.db` — approximately 288 KB, modified August 18, 2026
• `signedInUser.json`
• `storage-sync-v2.sqlite`

I opened a COPY of `logins.db` using DB Browser for SQLite. It contains:

• 392 records in `loginsM`
• 5 records in `loginsL`

The records clearly contain my saved websites in the `origin` field.

The table columns are:

`_rowid_` `id` `origin` `httpRealm` `formActionOrigin` `usernameField` `passwordField` `timesUsed` `timeCreated` `timeLastUsed` `timePasswordChanged` `secFields` `guid`

The `secFields` values begin with:

`eyJhbGciOiJkaXIiLCJlbmMiOiJBMjU2R0NNIn0`

Unfortunately, after discovering that my passwords were missing, I also reset my Mozilla account password. I understand that this may have affected the server-side Sync data.

My main question is:

Since the 392 encrypted login records are still physically present in the local `logins.db`, is there a supported or technically safe way to recover/decrypt those records and restore them to Firefox?

I still have the older `key4.db` and have preserved copies of all of these files without modifying the originals.

I am currently also attempting Windows File Recovery to look for an older deleted `logins.json`, but I would especially appreciate guidance on whether the surviving `logins.db` can be used for recovery.

Bill

My PC crashed and then upon opening up firefox it forced me to update firefox. Afterwards all windows and tabs disappeared but my browing history is still there. I tried the in-browser restoration but it is greyed out. I tried the session store backup profile data but has no 'previous' or 'back up' files, only 'restore' files that are empty and restore to no tabs or windows. What other ways are possible? It's weird my browsing history anf bookmarks weren't deleted at the same time.

Firefox is always displayed on an EXTENDED External Display. When I flipped a circuit breaker to work on a lightswitch, the EXTERNAL DISPLAY lost power, but the laptop which runs Firefox continued uninterrupted. When I restored power, Firefox had LOST ALL OPEN TABS - there were probably 50-75 tabs that opened every day when I started Firefox. Now I don't see a choice to ReOpen Last Session or anything else that looks like it would restore all the closed tabs. All the choices in Recent History seem to be what was browsed yesterday, day before, etc, but NOT all the tabs I routinely left parked OPEN every day which were open for months - the ones that opened every day when I opened Firefox. Are these tabs stored somewhere where I can recover them. I'm running firefox on an HP Laptop PC with Win11 Pro.

Subject: Help recovering old Firefox Sync data using my Recovery Key

Hello Mozilla Support,

I’m trying to recover my old Firefox Sync data, especially my bookmarks and saved passwords.

I still have an Account Recovery Key that I saved on August 27, 2025. However, after signing in to my Mozilla account today, my account page shows “Account recovery key: Not set”, and syncing does not restore my old bookmarks or passwords.

I may have reset or changed my Mozilla account password today without using the old Recovery Key during the process.

Could you please confirm:

Is there any way to use my old Recovery Key now to recover the previously encrypted Firefox Sync data? Is the old Sync data still retained on Mozilla’s servers in any recoverable form? Is there any other recovery procedure available for bookmarks, passwords, or previous Sync data?

I still have access to the same Mozilla account and the original Recovery Key file. I will not send the Recovery Key itself unless there is an official secure procedure that requires it.

Hello,

I keep running into an issue where my group of saved tabs disappears.

I will make several groups of tabs. When I right-click and press "save and close group," to shut down my laptop completely. There are many times when I return and try to access the saved group of tabs using the drop-down arrow at the top of the browser; all the saved groups will be gone.

Normally, I find them under "Recent Tab Groups". There have been many times when they are completely gone. Is there another way to find these groups of tabs or are they disappearing completely are a certain amount of time has passed?

Thank you,