Firefox Community Forum

Today, after the last update of the software, I lost ALL my tabs (2 years of materials) and there was no way to recover them. Furthermore, I had to spend hours to retrieve at least the most important tabs I use for work.

This is not acceptable, please fix this issue and make the recovery of tabs possible and easy.

Hello, I'm wondering if someone help me troubleshoot why the normal or recommended password files recovery isn't working in my case, because it isn't. I've spent 2-3 hrs this evening trying to follow the normal/recommended protocol for recovering previous passwords but it's just leading me in circles, sans passwords being recovered. What usually happens is every couple years either my bookmarks file gets completely lost or - this is new - in this case my saved passwords are gone (possibly corrupted, I'm not sure). I think something might've been corrupted or reconfigured (I hope not "lost" entirely), attempting to install and use the Beta VPN. Ultimately it was just too difficult to get it to work simultaneously around Norton360, which I decided was probably better to just stick with for now. Out of curiosity, I was attempting to get the Firefox Beta VPN installed last night (and operational) and I think that may have been when the previous data was lost or reset somehow. I tried following the basic procedure to reboot FF from previous folder backup (to desktop, "Old Firefox Data"), but that merely reproduces the same "empty" passwords page when I try to open up my saved passwords. Neither of the 2 previous App Data locations seem to help rebooting from ("default" or "default release"), and I'm hoping against hope, at this point, that one of those old JSON files has all my passwords still in it, uncorrupted, but there are so many, I have no idea how to find my way to the correct one. In any case, my FF saved passwords were still fully available and working as of only a few days ago, probably this last Sunday evening, today is Wednesday of the following week. My previous saved Bookmarks are apparently still intact, and auto-loading as normal, regardless of which of the previous user profiles I'm rebooting FF with. If anyone can help me, I would really appreciate it.

I had my computer fixed due to a virus and now I can't get my old firefox with all my saved passwords back. How can I get it back. I'm using my same email address.

I recently purchased a new desktop due to the previous desktop malfunctioning a bit. The old hdd is still in operating condition and is now a slave in my new cpu. Where can I find the history/bookmarks on the old drive? Is there a filename that is relevant for the data?

Thanks

Firefox has complained for sometime that my profile was created with a newer version than what I was using. I'd click OK, and go about my day. After about a month, I decided to upgrade so it would stop bugging me. When I did, my old profile did not merge, but was deleted, and now I have lost all of my passwords and bookmarks. How can I restore them when the profile is empty?

all your articles on 'Session Restore' or Restore Browsing History, are GOBBLEDEGOOK! links that do not work or are incorrect information! Steps which do not work or lead to a previous page which was not helpful ! " Recently Closed Tabs" or History will NOT open the latest tabs. Click to ??? "whatever" is incomplete 'cause you do not tell us WHERE IT IS LOCATED. Backup" is assumed by you, but no information to set it up! Bottom line.: when Firefox crashes, we [the user] is screwed!!

After I renamed one of the sessionstore backups to sessionstore.jsonlz4, It says move it up one folder, & restart.

My path is ...APPDATA\ROAMING\MOZILLA\FIREFOX\PROFILES\8TWMWQ0P.DEFAULT-RELEASE\SESSIONSTORE-BACKUPS

I put new sessionstore.jsonlz4 in default-release folder & then profile folder, , no luck on restart.

Thats when I reread the support instructions & saw my DISTRIBUTION ID is blank, so I dont have Microsoft Store copy to begin with.

It is doing a restore previous, but just two tabs from a 2nd session that was open at same time (oops on me) & , I am trying to get back to 40 tabs I was using.

""What happened:"" Yesterday I updated Firefox to 151 and noticed a "Profile" feature for the first time. I created a new profile, then saw a small icon with the Firefox icon that bothered me and realized it belonged to the new profile. I thought that the newly created profile is safe to delete and has to data within, so I deleted it. After that, Firefox deleted all old data and created another new profile and I lost old bookmarks, passwords, and browsing history.

Note: no warning was showed before deleting the profile.

What I tried: 1. Checked about:profiles profiles: no old data. 2. Opened the profiles folder in C:\Users\[my account]\AppData\Roaming\Mozilla\Firefox\Profiles: no old data found. I noticed one of the default profiles contains a places.sqlite file that’s about 2 years old: no old data, only default bookmarks are there. 3. Used Recuva to try to recover files — I recovered key4.db, login.db, and places.sqlite-shm but nothing useful so far. Environment/details: • Firefox version: 151 • OS: Windows 11 • No Firefox account Questions: • Is there any way to restore the old profile data from the files I recovered (key4.db, logins.json/login.db, places.sqlite-shm)? • Any other recovery steps I should try? • how to prevent the same thing in the future? Thanks

Hello, I've got a problem with my account after something log me off the account for no reason then I put in new password and boom nothing my all passwords are gone please these passwords are really important for me, I need them back and I will be thankful if I could get any advice how to get them back because I had something around 100 of them now I got one only one please help me out im freaking out.

nach dem start von firefox erscheint ein völlig neues profil - alle vorher gespreicherten tabs sind verschwunden. gibt es eine erklärung oder hilfe, um die vorherige ansicht wieder herzustellen?

I got up this morning and, boom, I am forced update Firefox. Lost everything: history, bookmarks, and passwords. It's suggestions are useless. I have gone to "profiles" (only 2 and none of my information is in either). I am living in Taiwan and half the time the help is in Chinese, which I cannot read. The loss of my information is devastating and I cannot find any real person to help me. There must be a way. Where do I find real help?

I used Firefox yesterday. My settings are to open Firefox with tabs restored - but all my tabs (as they were yesterday) are missing and when I go to history, the option to restore a recent window is greyed out. The option to restore a previous session doesn't even seem to be there.

I notice in task manager I have 15 firefox tasks. Could my window from yesterday have opened somehow in the background, but not be visible to me anywhere?

Firefox unable restore session when switching profiles and instead opening apps installed on the profile I'm switching to.

I have installed Whatsapp web (web.whatsapp.com) on "Profile 1" as a Windows app.

I have some tabs open in "Profile 1" and I switch to "Profile 2" and close the "Profile 1" window with "X" button of Windows 11 but keep the Whatsapp window open.

When I open the "Profile 1" from profile menu, my expectation is that, those previous tabs should be restored, but firefox is opening the Whatsapp web app/window.

OS: Windows 11 23H2 Firefox: 152.0.4

How can I Recover Deleted Firefox (build 151.0.2 (64-bit) Browsing History in my version/edition of Windows 11 Pro, Version = 25H2, installed = 12/06/2024, OS Build = 26200.8524. Can you help me recover my Browsing History from Friday, 05/29/2026? Please.

I have been using Mozilla Firefox on my mobile phone or PC since 2015. So, after so long, I found the Gmail that I used to log in to Mozilla from 2015 to 2018. Now, if I log in with that Gmail, will the previous history or data be restored or will it be Mozilla's?

FF 153.0b4 this time, was only a few months ago when FF did this same thing last time! But now its an updated ver and still messing up! It's getting more bloated (But most software is) and trying to do to much and things are going WRONG alot more often. FF (Mozilla) used to go years between data losses and now it's MONTHS! Get your act together Mozilla.

    FF wasn't even updating it self, and I haven't changed anything in days. Worked fine yesterday but when I opened it today, the 4 windows opened but they didn't want to open there tabs (most of them have less than a dozen). The main window showed my menu bar, recent browsing icon and a mostly blank tab bar except for the new tab on the far right, none of the other tabs were loading or even showing up, but the space was there for them. I even just left it sit there and chew on things for about 15 minutes before I decided to exit out (file/exit) and try again. This time my other 3 windows loaded just fine but the main window with around 2 dozen tabs was BLANK! and NO recovery options! Recently closed tabs does show tabs I closed on it before the meltdown but NONE from the LOSS. Nightly does not show any in the Tab sync either (but it may not have been up long enough to sync). There is a previous window, but that is not the one I need to recover (Ironic that it will save a window with 65 tabs closed a week ago and let me recover it but it won't let me recover a window with only a couple dozen tabs from a couple hours ago). Wish I could remember how to wright complicated batch files, then I could make one that would back up the profiles after I close FF, that way when it screws up I could just copy the last backup in place and be working again. And all I would need to do is just put a time code in the profile name to make incremental backups and decide how long to keep them for with out over writing. SEE how SIMPLE that would be for you to do Mozilla? It's been how many years that you've been working on FF and it's predecessor and still no profile backup and restore? And to make things worse, most of the databases used are encrypted in some way so as to be NOT user friendly. We can't even import an old backup or profile parts if we need to recover something or look at something. You make it SO hard to recover from a crash when one happens (and they happen more often than they used to) and even just to back up our info even if we could recover it. You were a great browser, now you are broken and barely adequate bloat ware and getting worse. Problem is that your still better than chrome and edge crap.

i had two different firefox browsers yesterday. I deleted one but all my passwords are gone from the other browser. When the firefox browser got uninstalled it created a backup on my desktop called bookmarksback up. how can i move that file into this new firefox and how can I retrieve those passwords?