Firefox Community Forum

My FireFox was updated to version 153 and all of my bookmarks are gone. I tried to restore them in Manage Bookmarks. But when i click on 'Import and Backup', then 'Restore', then click on 'choose file' nothing happens. I navigated to the directory "bookmarkbackups" and I can see several backups, one dated 08/06/2026. But how do I get Manage Bookmarks to see that file?

I tried to bookmark a current tab and it does not show up under Bookmarks. why can't I set a new bookmark? Are these issues related?

I'm on Windows 10.

For the Troubleshooting data, I manually open about:support and clicked on 'Copy text to Clipboard'. Then pasted that into the box below.

My Firefox created a new profile and reset everything. I was able to go back and locate my bookmarks and restore them, but my menu bar is reset, my history and saved passwords etc are all gone.

I didn't know I need to keep a device on if I want to sync my old data. I read it thoroughly. This is annoying, I don't want to lose my Sync data from this because I didn't know. How do you guys retain your Sync data if I were to reset my password? My computer just got fixed and I don't like this greeting of where all my data like history and bookmarks flushed down because I wasn't signed-in in a device nor did I place a key or something.

I AM HAVING THE SAME PROBLEM AGAIN, I HATE HAVING EVERY SINGLE ONE OF MY TABS DISAPPEAR WHENEVER IT CLOSES WEIRDLY AND I LITERALLY CANT RECOVER ANYTHING, AND IT GIVES ME SOMETHING NEW, WHAT THE HELL EVEN IS THIS FIRST FILE, I HAVE NEVER GOTTEN THAT JSONLZ4 FILE E V E R!!! AND WHEN I TRIED TO DO THE SAME METHOD OF REPLACING THE FILES WITH ONE OF THE OLD RECOVERY FILES LIKE IN MY OLD QUESTION, IT DOESNT FUCKING WORK, SORRY TO SWEAR BUT ITS UTTERLY RIDICULOUS DUDE!!!

I am attempting to copy a FF profile from a Windows 11 machine I created it and am using it on to a brand new windows 11 machine on which I have also just installed FF on. Both machines are at FF 150.0.3. I have done a search online for the methods to do this but they have both failed for me.

The first one I tried was simply copying the profile from the existing (source) machine to the profile folder in the new machine however FF never recognized the copied profile on the new machine (I am using profile manager on both machines).

I then tried copying the profile using the method we used to use a while back to copy profiles which is to let profile manager create a new profile in the new machine, open FF so that it creates that new profile in the profiles folder then delete the contents of that profile leaving it as an empty profile (with the name of the newly created FF profile). Then, I selected and copied the *entire contents* of the source profile I was trying to copy and pasted them into the newly created profile I had just zero'ed out on the new machine so that the new profile now had the exact same contents as the source profile. I knew this copy was successful because it took a while to copy all of the data from the source profile to the new profile and the indicator showed it copying.

Again, FF did not recognize the new profile when I opened FF with the name of the new profile in the prof mgr.t.

Could someone tell me what I am doing wrong or what the problem may be? One problem I had when I first copied the source profile to my 32GB USB drive was a message saying "inbox folder is too big for destination system. " The source profile is 12.72 GB so there is plenty of room on the USB drive for it to fit. I have no idea why FF would have an inbox file so I just skipped it. The rest of the profile copied to completion once I did that but its size after copying was now only 7.65 GB, about 5 GB less than the original. Could this be my problem and if so, how do I fix it? Thanks for any help.

I don't know whether this happened after an update - there was one a few days ago, but I only realised this morning, after switching on the computer, that all my bookmarks are missing. The toolbar is there, empty, only reading "For quick access, place your bookmarks here on the bookmarks toolbar"... I wish! I tried to restore the bookmarks - but it seems there is no backup to restore at all. Then I tried to check my profiles, but there is only the one currently in use. Then I tried to move a tab to the bookmarks toolbar - and nothing happened. Then I began to panic: toolbar apart, we're speaking about years of bookmarks, most of them related to my research for my books... All the advice in the support seems to point towards profiles and backups, but, as I said, it's clearly not my case... Please, please, please: help!

I realize there have been several questions on this topic, even with the same subject heading.

The popup generally appears if you're trying to exit or refresh a page but haven't hit post or submit after entering data into a field. It's a good warning in case you've forgotten to do just that. I accidentally restarted Firefox after an update, and when I returned to the site I was working on I got this popup. Which makes sense, because I had entered in a ton of data and hadn't submitted it.

However, the page that I was returned to wasn't the one into which I'd entered my data - it was more of a home page for the website. I suspect this is a lost cause, but ... is it at all possible that the browser actually has that data saved somewhere and is waiting for me to complete submitting it? Or is this just a false positive?

Hi, I'll try to explain exhaustively my problem and what I've tried.

While looking at adding a new profile, I made a mistake and deleted the actual profile. Firefox immediately shut, and I made the mistake to open it right after...

It started from zero, as it had no profile to go into. Creating a new profile in the same time. I did this a few time, nothing changed obviously. I went to the AppData/Roaming path to find my old profile, which wasn't there anymore. I then managed to recover my profile files thanks to Recuva and EaseUS.

But now, I'm stuck. When adding the files in the newly created profile, it seems to roll back to the profile creation prompt (like import stuff from other browsers etc.). Copy/pasting only the desired sessionstore or the previous backup doesn't work either. It also tried to put the "good profile" in the Profiles folder. Firefox didn't recognize it, and I couldn't create a new profile from this folder in the Profile Manager as it said "this name is already used" etc. (it's a default-release) I then tried to edit the profiles.ini and install.ini to force Firefox on the wanted profile. Which succeeded and failed at the same time: it opened the right profile-folder, but without any session, bookmark... and back again to the profile creation prompt. And created a new empty sessionstore, prefs, etc.

Then I'm left with my recovered backup files and no idea how to import them...

Any help will be warmly welcomed! Cheers

I run the current Firefox version under Windows 11 Pro on a Dell Inspiron 15 3530 laptop, Lately, I've been having problems with my bookmarks:

• First, I found that I had somehow lost a large number of bookmark tags; it took me several days to restore them,
• Next, I found that I had lost a bunch of bookmark subfolders; the bookmarks (for the most part) are still listed under their tags.
• When I try searching for tags in Bookmarks Manager, the search yield no results
• When I try to restore my bookmarks from a previous date, I get an "unable to process file" message.
• When I try to open the profile folder through the debugging information page, I get a "file not found" message. After some searching, I found the profile folder not at "C:\Users\croge\AppData\Roaming\Mozilla\Firefox\Profiles\7csymh5k.default-release", but at "C:\Users\croge\AppData\Local\Packages\Mozilla.Firefox_n80bbvh6b1yt2\LocalCache\Roaming\Mozilla\Firefox\Profiles", Something seems to have gone haywire--did I miss something, or is there an error somewhere?

Zniknęły mi zakładki (nie ma ich ani na pasku, ani jak wejdę w zakładki- w ustawieniach i w zarządzaniu zakładkami). Hasła te co były zapisane mam dostępne na moim koncie.

Firefox updated its version on my iMac desktop two days ago and all my bookmarks are gone. There's a message at the top that says: "For quick access, place your bookmarks here on the bookmarks toolbar. Manage bookmarks..."

All my bookmarks are gone as if they were never there. I have a My Passport Backup hard-drive but I don't know where I can find them and restore them.

I updated Firefox to 145.0 this morning, and after Firefox had restarted, it had lost all bookmarks and the bookmarks toolbar. I have spent all day following links to correct the problem and got nowhere. I have restarted Windows and Firefox countless times - no change. I've even tried reinstalling Firefox over the existing version. If I go to bookmarks > manage bookmarks > restore and backup, sometimes that will load, others not. When it does load, it fails to find a file to restore from. 10 years of bookmarks, links & research vanished.

Can someone please provide a solution (preferably in Layman's terms) to this??

Firefox updated automatically. No bookmarks or history??? I cannot find anything. This is my old Windows 10 computer. Have bookmarks on Windows 11 computer. Afraid of updates. any help?

Absolutely furious. My bookmarks have completely disappeared and none of your suggested 'articles' is any help at all. I certainly won't be using Mozilla any more if you can't tell me how to rectify this.

I'm setting up a new computer, (Windows 11). Currently on a home WIFI network, in UTAH, with another computer, (windows 10). Very soon the new computer will be moving to my retirement home, in Nevada, on a new WIFI network.

Basically, How can I import Firefox bookmarks from another computer that is on the same WIFI network?