Firefox Community Forum

I was able to use it this morning from my macbook. But the afternoon I was on sites where my passwords usually fill but now everything is empty, everything had been deleted. I tried to log out and back in to mozilla and sync, but everything is gone. Over 100 sites and passwords. How this happened ? Where can i ask for help since Mozilla doesn't offer any.

Hello, for some reason all my tabs just closed and i cant get them back by any way either than recovering last session, but when im trying to follow the way "history - recover the last session" there is no such option as "recover the last session", are there any other ways to recover the session or make this option appear? firefox version - 140.0.4 (64 bit)

After Firefox requested to be updated, I lost all of my bookmarks. I tried to go in and "restore" them but there are no backups to restore from. How do I get my bookmarks back?

I have a profile that causes odd behavior, within the profile, and to the OS.

Regarding the profile itself:

1. I use Multiple Tab Handler, which should allow me to move tabs on the tab bar with the mouse, but it does not (see image of proper behavior)

2. Normally, i can drag this padlock button to the desktop to create a shortcut. but now, it will not move/drag (see image 2)

3. I also have a backup profile from several months ago that has none of the above symptoms. However, If I substitute it's sessionstore.jsonlz4 file with the the one from the problematic profile, all the bad behavior mentioned above re-emerges.

I know this sounds strange, but, I also get external display issues when using the broken profile. These events are random, and manifest themselves differently, so I can't duplicate them. Essentially, these snips are examples of images from the taskbar tabs, or the clock area, suddenly superimposing themselves on the top portions of the taskbar toolbar area.

This is the view of my clock area (see next image 3)

In the following image, imagine that the portion on the left, that opens the start menu, is now hidden under what looks exactly like the clock area on the right, superimposed over it (see next image 4)

Those aberrations are removed by simply moving the mouse cursor over them, but they will continue to occur in any number of variations over any area of that top toolbar.

Is there a Session Manager that will save the session, to be later restored into that previous profile, but not also pass along the corruption?

Hi, I recently upgraded my computer and as part of it had to reinstall Firefox for desktop. When I did, I noticed that none of my passwords, bookmarks, and such had transferred over. I tried hitting the 'Sync Now' button in the settings, but nothing happened. I then checked my phone as I had Firefox installed on it, and all my data was still there, and tried hitting the sync button, but nothing happened, the button just highlighted every time I hit it.

Going through the 'connect devices' route in the desktop settings, it popped up a qr code for me to scan, but the steps it outlined didn't make sense as there was no 'sync and save data' button to hit, as apparently with a recent update they removed that and folded it into the account menu - the same 'Sync' button I had tried fruitlessly before. I also noticed that no matter how many times I hit the button, it just said 'Updated 1 hour ago', indicating it was not actually syncing. Even when I changed the device name on my phone to 'Firefox Mobile' and then hit sync, my passwords and bookmarks didn't copy over, only the new name it seemed.

I then tried uninstalling Firefox from my phone and reinstalling it, and this time the option to scan came up during the install, but now my phone doesn't have any of the data I had been trying to recover. Additionally, in my Mozilla Account page it shows the desktop app, the new phone install of Firefox as 'Firefox on samsung SM-S921W', and the original 'Firefox Mobile', which presumably still has all the data I have been trying to recover with no success.

Please help me get my data back, I need my bookmarks and passwords primarily and believe they may be locked onto the 'Firefox Mobile' device, if they are stored anywhere at all. Even if there's an older partition of my bookmarks and passwords from a week past or some such that could be recovered would be greatly appreciated. Additionally I would greatly appreciate if you could make the Sync feature actually functional, as this has been rather stressful and aggravating - that data has been collecting over the past ten years, minimum, and some of it is rather critical.

Thank you for your time.

Hi, I recently authorised an update and now how lost all my GUI data > my bookmarks and tabs, passwords and history too. I had to reinstall Firefox through Edge on my Windows 10 laptop because of the update which froze the system. Can you help me to access this valuable information and let me continue with the best browser I have been using for over a decade please? Why have I lost my data? Thank you in advance.

Is there away i can get my browser history and data back ,i logged out of windows couldnt remember my password ,logged in with a new password and all my data is gone .....

Hello,

I'm writing because I’ve encountered an issue with the tab groups feature in Firefox.

Some time ago, after a browser update, I noticed a new feature that allowed me to group tabs thematically — I could name each group (e.g., "Study", "Work"), choose a color for it, and save and close groups to reopen them later. I found it very useful and used it a lot.

Last night, I decided to declutter my browser and closed several tab groups using the built-in menu. A bit later, I shut down my computer, but perhaps too quickly. This morning, when I turned my computer back on, Firefox was very slow to start. After a restart, everything seemed to work fine again, and the open tabs were restored.

However, all my previously saved (but temporarily closed) tab groups disappeared. In the tab group menu, I can now only see the ones currently open. I’ve searched through all the settings and history but cannot find any way to restore the missing groups.

Is there any way to recover the tab groups that I had previously saved and closed?

Thank you very much in advance!

Hi

Lets say i have 100 tabs open in my session. I mistakenly open a new window with one tab. After closing this window and starting firefox again, it starts with this one tab, so i have lost all my previously opened tabs. Is there a way to get those back?

Thank you very much. Dimitris

Hi I need help as my Firefox browser got uninstalled this morning I had to reinstall and all my saved data has disappeared,

Please help retrieve old mozilla firefox data.

Today firefox deleted my complete history with the latest update. My data recovery tools cannot find any old profile. I demand a solution, since you update without any warning or possibility to save the history/tabs.

hi, Recently, I updated my Fire fox browser after updating my all the bookmarks and saved info on browser are vanished. now browser also not support login with google id's why? , I switched to firefox just because I never face this issue with firefox. Now it does same as the other's.

100% of my bookmarks have disappeared. I tried backing up to older version a month ago and still no bookmarks were found. I had over 2000 bookmarks. any suggestions?? Marty

firefox updated to 128 esr all of a sudden (i didn't click update or download for this) and when i went to open firefox, the appearance and everything changed. it looked like google chrome and none of my bookmarks and settings and layouts were there. they just DISAPPEARED. i tried googling how to to fix this and for some reason every time i search it takes me to another search engine instead of google. (this is beside the main point though). I'm so frustrated right now since all my bookmarks are gone (literally having a breakdown). I tried looking through the help articles and all of them just say to use the backup profiles or that there are bookmarkbackup files in my profile folders or that firefox would download a folder with files from the old version but none of that happened. I looked into my folders for older profiles trying to find places.sqlite files but NOTHING. there is literally NO backups or profiles dated to before July 16 2025; the day it updated (shown in screenshot) and there is NO bookmarkbackup files anywhere. i have signed in to firefox prior and had my devices synced for awhile and no issues so there should have been previous profiles and data saved onto my computer. Please help, I really need my bookmarks back!

hi firefox, today i get an update of firefox, after updating my browser my all the saved bookmarks, history and my login details are wiped out. kindly check this why is it happened and resolve this thing. the data saved in browser is important for me, help me to recover it

My bookmarks have all disappeared, and while I have tried to follow the instructions on the help page to restore them, nothing is working as it has been indicated that it should in the help instructions. I do still have my Bookmarks tab on my tool bar. When I click on it I get a pull down menu, which does have a Manage BookMarks bar. However it is not at the bottom of my pull down menu, but at the top. When I click on the Manage BookMarks bar, instead of getting an Import and Backup Button, my pull down menu disappears, so I can not select Restore to use to get dated backups.

In the same way, I can not create new Bookmarks. When I click on Bookmark Current Tab, instead of getting the white box to enter instructions, the pull down menu disappears, just as it does when I click on Manage Bookmarks. I have never had this problem with Firefox before in all the years I have used it. I have no idea what has happened.

Under Settings; Privacy and Security, my Passwords have disappeared, and at the same time all of my Bookmarks disappeared also.

While I was online this morning, all of a sudden my Mozilla tab went blank and the Firefox Icon on the bottom tray disappeared too.

All 3 problems happened at the same time.

This is a disaster for me.

Can the Passwords be restored? What in the world happened to my system?

Thank you.