Firefox Community Forum

Hello, after a power cut I lost all my bookmarks. When I try "Manage Bookmarks -> Import and Backup -> Restore -> Choose File..." nothing happens.

In the folder ".mozilla/firefox/6924v31j.default-1728390329118/bookmarkbackups" there are several backup files, but the newest has the date Jun 25, though the name suggests it's from Jul 2: -rw-r--r-- 23850 Jun 25 13:07 'bookmarks-2025-07-02_184_mg1znof1NbBiyJ14ZcO9SluvTvLZI-rxPSm20YZUJww=.jsonlz4'

In the directory ".mozilla/firefox/6924v31j.default-1728390329118" there is also places.sqlite from Jul 4 11:59 (that was the moment when the power was cut).

How can I restore my bookmarks?

I spent almost an entire day setting up my firefox browser shortcuts, themes and extensions on my laptop. It was exactly how I wanted it. Now it is all gone! I had not written all the web addresses down. how do I get them all back?

I need to recover a `.jsonlz4` file to restore a Firefox session with 8 active instances, as the "Restore Session" feature only opened 5 due to the `browser.sessionstore.max_windows_undo` setting being capped at 5, and the full original `.jsonlz4` file is now missing.

In the`firefox/Crash Reports` directory, there are numerous files I can’t interpret, can I retrieve my session data via telemetry or other methods using this crash information. I’m using Linux Mint with Flatpak Firefox, and I also have crash logs containing a "last crash" text file and a string of numbers, could these be useful for getting back my session?

This keeps happening and is getting worse every day.

Firefox is refusing to load tabs sometimes every few hours but recently every few minutes so I have to shut it down and restart it, sometimes when I do I lose all my pinned and non pinned tabs, I can't remember what they are so manually restoring them doesn't work.

There should be a way to backup all tabs so they can be restored when this happens.

FIX IT FFS.

OS: Linux Mint Latest update of Firefox

Hi Team , I am using my firefox browser profile logged in with "[edited from public] @tothenew.com" . Today when i open browser and got to know my account has been logged out while trying to sign in again to my profile it required to get authentication code sent on mail id but i had lost that mail id . so could you please help me to gain acces to that profile i have bookmark some important document on this .

Hello,

I just moved from Windows 10 to Linux Fedora Workstation and I used the "Back up and restore" option in the Sync Tab available in Firefox on Windows 10 to save my data in the form of a unique html file. (https://support.mozilla.org/en-US/kb/firefox-backup)

But now that I'm in Firefox on Fedora, this option does not seem to be available (in the Sync tab in Settings). Is there any way I could at least recover my bookmarks ?

I'm using Firefox 147.0.1 from the official Federa repo.

Thank you for your help.

I rebooted my laptop with both firefox windows I had open and possibly a private window too, then rebooted again without touching firefox, and now I can only restore one of the two windows. I checked my recently closed windows in history and there was nothing there at all. Is there anything I can do at all to restore that other window or is it just gone for good now?

I have tried restoring my bookmarks using these steps but it doesn't work. Specifically, when I try to select "Choose File" in Step 3 nothing happens. The option will highlight, but when I click on it no window to choose a file pops up. Is there any other way to restore bookmarks using a json backup?

hello,

I want to transfer my profile from an old laptop to a new one. i am not comfortable with uploading my passwords to the cloud as i do not understand how this is safe. i made tar.gz file with the entire profile, almost 1gb and put that on the new laptop. edited the profiles.ini and install.ini and expected the profile will load, but firefox simply does not work in that profile. it cannot browse and clicking the menu button in top right does nothing. Please, help. If I share data below that is the working profile, not the one that fails.

I lost all my bookmarks after updating. I couldn't restore them, and now I have to log in to all my accounts. Absolutely everything is gone. I've tried restoring bookmarks, but it doesn't work.

After several windows problems, I did a clean install with forgetting to sync or backup on my profile and lost a good bit of my bookmarks. However, I managed to retrieve some files, but they seem corrupted and after going through forums and several researches, I am unable to use them. I tried to look at the files and some of them turned to chinese and others have strange symbols in them. Thanks lovely people!

I've been backing up my opened tabs for the past 4 or 5 years with the steps in this legendary post: https://support.mozilla.org/en-US/questions/1257866

But this time it failed me and I don't know why. I just switched from Debian to Linux Mint, put everything up to date, but when I copy the sessions-store folder back into my session folder, as described in the post, nothing happens. I tried restoring only the 2 files listed there, and also dropping them in the general user folder, outside sessions-store, but still nothing. I've also noticed that the sessions-store folder isn't created automatically, even if I open a bunch of new tabs now and close the browser.

I don't even know how to begin troubleshooting this to be honest, this is the first time this method's ever failed me :(

I also saw this post: https://support.mozilla.org/en-US/kb/how-restore-browsing-session-backup But it doesn't help either.

I deleted a profile not knowing it would delete everything I had. How can I undo it? I didn't want Firefox Profiles, it was forced. I deleted it, and everything just got deleted. Can someone please help revert this? Thanks.

I had bookmarks and backgrounds and everything saved on my browser. My mac book died and now when i open it everything reset. I didn't have any profiles or sync on but why did everything reset. And am i able to get what I had back.

I was switching computers and created a backup file. The type was html oddly. I tried to restore this backup on two different computers and both times it fails during the restore process without presenting a useful error message.

I can only guess that the file is corrupt, but it is only a guess since the error message is useless. It also seems strange that the backup didn't produce any errors (manual backup). Any suggestions?

I'm using firefox in ubuntu. A couple of minutes ago Firefox crashed. I restarted to a completely new Firefox. All my tabs, extensions, saved passwords, etc. were gone. This happened to me a few weeks ago. That time I found a solution: find a back-up of the old profile and manually restore it. I tried to reproduce that solution this time, only to find that there are no back-ups at all of my previous session. Is there a solution to this problem?

when i updated linux a newer firefox version was installed but none of my personal settings, passwords or bookmarks installed onto the new firefox version. can't access my previous profil on my computer