Diễn đàn hỗ trợ Firefox

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?

I've been a loyal Firefox user since version 2.0. but to this day you guys have not made it easier for users to restore Firefox profiles. We in 2026 should be able to do the following directly from the user interface of Firefox. honestly its really taken me a long time to voice this opinion but it makes the app a tad less user friendly. i mean its easier to import from another browser but you have to pull out and search all sorts of folders to import from an old Firefox installation or a windows refresh (windows.old). Please, please implement this ASAP. we users have waited too long.

1. display a list of profiles (even from windows.old after a windows refresh) 2. automatically import that information 3. append existing bookmarks from the bookmarks backup if i choose to. 4. be able to browse the bookmarks and show the most recently used ones 5. be able to even reinstall the existing plugins (this one is minor)

the image attached is exactly showing what happens after a windows refresh. this feature is also great for administrators.

Regards, Shomari Ryan

The electricity here went out briefly. My I-Mac shut down. When the electricity came back on, the bookmarks were gone. And also, now I cannot bookmark anything-cannot initiate a new bookmark

bold textFirefox does not allow porting of bookmarks from one profile to another!!!!@!!!!!!!!! I can copy bookmarks to an external drive, but then how am I supposed to get them into another profile when the folder is the same as the one I copied--there is only one folder under library/application support etc. so doing it manually doesn't work; new profile gets error message, as account only allowed on 1 profile so Sync doesn't work.

Ok, I screwed up.

I was trying to solve a problem I've been having with regular releases of Firefox and it occurred to me try the ESR release so I downloaded and installed it. The good news is that it solved my problem, the bad news is that I just barrelled into it without thinking, assuming that my logins and bookmarks would just transfer over like with regular releases. They did not. It turns out I should have made a backup of those things first and I can't open the old regular release of Firefox to properly back-up those things now. Oops.

I've been reading lots of forum posts here and elsewhere trying to get those files into ESR and I haven't been successful. From the profile manager I've located the profile that still contains that info and I've tried:

Copying and pasting the "logins.json" and "key4.db" files from the "default-release" profile into the ESR profile which didn't work.

From "about:profiles" I also tried to "launch profile in a new browser" of the default-release profile so I can open that profile and properly back-up bookmarks and logins but I get a prompt to create a new profile which I tried several times and only resulted in several profiles of the ESR release.

Then it occurred to me that If I could just delete all instances of ESR and open the old default-profile then I could back-up the logins and bookmarks, THEN download and install ESR again and import those files but before diving into that I need to make sure that won't loose my original default-release profile info.

So experts, does that sound reasonable? Delete all instances of ESR so I can open the regular Firefox? What's the best way of going about that?

Thank you.

bold text'I am so fed up with these updates loosing my passwords and data, why ? All my settings are messed up and last time it took two weeks to get everything back, why? I give up total idiots for releasing updates that are sub par!

Hello,

I recently reinstalled Windows on my computer, and after setting everything up again, I noticed that all of my Firefox bookmarks are missing.

I would like to know if it is possible to recover or restore my bookmarks. Before reinstalling Windows, I was using Firefox normally and had a large collection of saved bookmarks. Unfortunately, I can no longer find them after the reinstall.

Could you please let me know if there is any way to recover them, either from my Firefox account, a backup, or any other method?

Thank you for your help.

How can I prevent firefox from DELETING all my bookmarks EVER AGAIN! FUCK!!!!! They did some kind of screwy update and reverted my bookmarks back by 6 months and I can't get them back. And yes, I saw all the backups they "stored" but they are not in there.

Hello! Is it possible to recover older open tabs from a broken device that had sync activated? For a while they appeared in the hamburger menu in the top right, but now they suddenly disappeared, and under the "connected devices" I cannot click the device or anything. It went broken 2-3 months ago. Best wishes!

I had a system crash and had to reset my PC to factory specs. I previously saved my Firefox recovery key so that I would be able to recover my bookmarks etc in case anything happened however when I tried to recover my info I kept getting a message that my key was invalid. I then realized that a 32 character key is necessary but my key is only 28 characters. Did I miss a few characters or do I have an older key that will no longer work? Any help or info you can give me on this will be appreciated.