Firefox: форум сообщества

helloooo

i am experiencing an issue with firefox where backup (Firefox Backup) is not working since version 148.0

problem: - when I try to create a backup, i get the error: “Hmm, there was a problem with the backup. Please try again in a few minutes.”

what I have already tried: - enabled and disabled backup password - changed the backup folder/location - cleared browser cache - tested across multiple updates (issue persists)

- backup is enabled, but I cannot create one - the error occurs every time - restarting the browser and system did not help

I went to [https://support.mozilla.org/en-US/kb/firefox-backup] and under "Create a Firefox backup file" at step 3 it says, "Scroll down to Backup, and click Manage backup" but when I went there no such "Manage backup" option exists as you can see in the attached screen capture. So what gives? How can I "Create a Firefox backup file"? I am using Firefox v147.0 (64-bit) on Windows 11 Please instruct. Thanks RJB

After a problem with his Internet connection, a friend is now unable to open Firefox. At first the message was that ‘… this tag has crashed.’ Now the message is that it cannot find something with a .dll at the end. I suggested to simply uninstall and then reinstall Firefox, which would also ensure that he has the latest version. However, he has no backup of his bookmarks.

I was, therefore, wondering whether it is possible to access the bookmarks somewhere else on the computer, in order to back them up before the uninstall/reinstall procedure.

Many thanks.

Hello, when automatic offline backup in stable firefox was first introduced, it worked perfectly fine. It created automatic backups in folder I pointed to. Unfortunately few weeks later it stopped working completely, no idea why. I tried following support article, which is limited to turning backup off, deleting folder and turning it on again. Unfortunately it did not help. As soon as backup starts, it gives me error and does not create any file. It shows "creating backup..." for few seconds, then this banner disappears and only error banner remains.

Can you suggest me advanced troubleshooting for this? Maybe there is some log file which could point me in right direction?

I am wondering if it is some issue with Polish language, because I point to D:\Firefox backup\Restore Firefox but it creates "Przywróć Firefoksa" folder.

Hi,

On the "Your Firefox has updated" page, I recently found out that in addition to Firefox Sync, you can also create a backup in the form of a local file. When I try to follow the instructions on the support page for the function (here I get stuck. For some reason I am only allowed to choose a file to restore my data, but I am not allowed to create a new backup. I have tried refreshing Firefox and even creating a new profile, but both have the same issue. I am not seeing a "manage backup" button either (see screenshot).

It's not the end of the world thanks to Firefox Sync, but I would like to get it working as a nice backup :)

Thanks in advance for any help you guys can give me!

Firefox update today 1-14-26 says Restore FF with a backup file" Instructions say go to Settings/Sync/Backup/Manage Backup. My Sync has no Backup option, only shows: Sync Manage account Device Name Syncing: ON You are syncing these items across all your connected devices: Bookmarks Open tabs Add-ons Settings Connect another device . How to proceed?

(I don't recall setting Syncing to "On" before; it also showed me as automatically logged in to my account.) Assistance appreciated! Thanks!

Roughly every 2 weeks I backup important files to a external hard drive.

One of the things I always backup is my Firefox profile. I have been doing this for years without any problems.

I 7zip my profile and copy it to the hard drive.

I tried to do this yesterday (July 25 2025), and was getting access denied messages for files in the profile. So I tried to simply copy the profile. Same thing access denied.

I cleared the history, used wise disk cleaner, rebooted my machine and tried again. Same thing access denied when trying to backup or copy the profile.

I am assuming that this is happening since 141 because I updated Firefox since the last time I backed up my profile, and never had a problem previously.

Could anyone have an idea what the problem is? Thank you for your time.

Hello, I just tried to import bookmarks to Firefox, however they're not appearing on the title bar?

I imported bookmarks to desktop Firefox 134.0.1 (aarch64) on raspberrypios - 1.0, but the title bar only shows Import Bookmarks... and the imported bookmarks are located in Library -> All Bookmarks -> Bookmarks Toolbar/Bookmarks Menu -> Mozilla Firefox -> Imported Bookmark.

Hello, I want to travel my profile manually. And may automate it by my home computer which is a WebDAV server.

But I find a big folder "Roaming\Mozilla\Firefox\Profiles\fgrfgcgt.default-release\storage\default" It is 2.65G which is a bit big. I can exclude/delete it from my backup?

Hi I just saw the new info on backing up my Firefox data. It sounded good, so I tried it. However I do not see 'Manage Backup'. Instead it asks 'Choose backup file'. I have never knowingly backed up Firefox, so I do not know where this backupfile is located... How can I find it? How do I create a new backup file? Many thanks An

I have Firefox installed on a Windows 11 desktop. The profile is missing, yet Firefox is working fine, and I see all of my bookmarks, etc.

I have windows set to show hidden files.

When I try to run %APPDATA%\Mozilla\Firefox\Profiles\ it tells me that the location is unavailable.

I cannot find the profile anywhere in file explorer, despite multiple tries to search for it.

If I go to Help > Troubleshooting Information, I see a "Location is not available" message, shown in the attached image.

I could uninstall and reinstall Firefox, but I'd prefer to solve this because the exact same thing is happening to my Thunderbird profile. It doesn't exist anywhere, yet I can see all of my emails and it appears to be working properly. I only found this problem because I wanted to backup my emails but was unable to.

Both of these profiles must exist somewhere, but I've tried everything to find them. Please help me fix this in Firefox, and then if I have a fix here I'll try to apply it to Thunderbird, where I have a lot of emails I'd hate to lose.

I read article at: [https://support.mozilla.org/en-US/kb/.../firefox-backup?as=u&utm_source=inproduct#w_create-a-firefox-backup-file]

But in my up-to-date (or updated) FireFox, the restore backup by file option is appearing BUT enable backup or backup to file option is NOT appearing (screenshot attached).

Following a restart, Firefox has installed this icon on my desktop: "Linguistic handbook feeds backup.opml", with the Firefox picture.

All it does it is take one to a browser page opening the file on my C drive, and saying blankly: Firefox Live Bookmarks. (Incidentally I cannot see this file listed anywhere under Mozilla in Programs or Programs , so I suppose it is nested in something else.)

I assume I can delete this without damaging Firefox for all eternity, but I am curious to know how it got onto my desktop.

I assume the "linguistic handbook" is not actually what it says but something to do with the many languages Firefox is translated into, yes ? - or does it really deal with catenatives, anaphora, kernel clauses, retorts (et al.) used as a test of auxiliary status, or whatever ?

I am trying to export/import my book marks from one macOS computer to another (intel to Apple silicon), however, all of my imports and restore attempts fail. My last restore attempt failed with the following message: Firefox Unable to process the backup file. Any other suggestions?

Does ‘Firefox’ automatically send extra ‘backup authentication code’ once I use up the current lot it sent?? If not, what does 1 do for extra extra ‘backup authentication codes’ ??