Firefox 社群討論區

i have made sure that all the settings do not force signing out, all settings include save passwords/bookmarks etc.

But... when I close firefox Im forced to sign in when I reopen the browser, it also looses all my bookmarks and passwords and I have to re-import them from the firefox backup.

I have deleted various temp files and force firefox to create new ones.

Can't get around this. It becoming such a farce that I'll abandon firefox and go to Opera!!!

Carleton

I installed and update this morning, September 7, 2026, but now all my previously saved bookmarks (prior to September 7, 2026) are not accessible or shown. How do I recover all of them?

I made a change somewhere that caused a total loss of history/open tabs even in my tab manager extension. I can't remember exactly what it was I changed but nothing I have searched here has been helpful in recovering from this. I did not want to bring my profile from home as I am using Firefox here in a work environment. Can someone point me to or explain a step by step method to be able to do this? Nothing I found in searching here has been positive.

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?

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.

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

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.