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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.

When my Mac got an automatic system upgrade to 15.1.1 I lost everything. I was able to recover all my files but I lost the foxfire bookmarks and bookmark bar. How can I recover them?

Hello:

I am trying to create a csv file of my passwords to import to Microsoft Edge from FF. I went through these steps in Firefox:

Settings>General>Import>Select Passwords from CSV...

...and then it takes me to browse my computer for a CSV file that I have YET to create. I don't think this is how you create such a file.

I'm not sure how to import my passwords to create a CSV file so I can put them into MS Edge. When I tried importing my password (and all my other data) inside of Edge via Edge, it only brought in 235 passwords from Firefox where I have 422. So I would assume if I used and imported my passwords to Edge via a CSV file instead that all my passwords would populate in Edge not roughly half of them.

Could you please tell me how to create a password CSV file in Firefox to use in Edge?

Many thanks in adabce

When having restarted my computer and Firefox Nightly after a sudden power outage, all my tabs were gone. I need to restore them.

I went into the profile folder, but there was no session store file. Inside the backup sub folder i saw two large files, "previous.jsonlz4" and "restore.jsonlz4", and made a copy of both and placed them inside a new sub folder that I made, inside that profile folder.

An expert from the "Tech Support Guy" website ("Nader") told me, to open "about:support" and there to use the "Refresh" feature. I did this, but no tabs were restored. So I went into the profile folder again, just to see that it had disappeared and been replaced by a new profile folder! And therefore my two copies of the PREVIOS and RESTORE json files were gone, too, as they were inside a sub folder within that disappeared profile folder!

Now I need to know, URGENTLY, how to restore that folder and the files and sub folders within that profile folder. Thanks!

When will Firefox Android allow backing up bookmarks to a file on the phone? I want to keep my phone and my desktop browser separate, so I don't want to sync. Without this feature, I regard FF Android as so problematic that I'm trying to find an alternative.

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!

Hello, Bookmarks and Sync is still a mess on Firefox and needs the backup protection. Search results say to sync the bookmarks, however my question is about backing up before the sync, as unclear syncs can wipe Bookmarks from device1 when device2 has no data, and incorrectly syncs in the wrong direction. Desktop is easy to just copy paste the bookmarks file, but how to copy/paste a backup on iOS? I might post another question regarding the incorrect Firefox 142.0.1 (aarch64) desktop instructions currently prompting on the browser.

Looking to export my saved passwords from Firefox for Android (Current Version) to CSV file or directly to Bitwarden Password Manager. Can you please explain how to do This if it's possible?

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?

Hello from New York City!

What is the procedure to move Thunderbird local folders from a laptop to an external disk drive? The Windows 11 laptop has run out out of local disk space.

Have installed ImportExportTools NG plugin but do not understand the all the folder export type options. https://github.com/thunderbird/import-export-tools-ng

After moving Thunderbird local folders to an external disk drive, will it be searchable? Any clues appreciated.

From a Thunderbird 128.10.0esr (64-bit) user on Windows !!. Thank you.

My Profile Folders can't be backed up. Messages I receive while attempting a backup state that permissions are required to backup certain files. I'm working in an administrator account so that shouldn't be an issue and I use to backup my Profile Folders without an issue.

If I go to the profile folder, exit firefox then copy and paste the folder to a backup location. The attempted backup fails. Something about permissions as I recall. I have tried many things unsuccessfully. Something has changed that does not allow for the backup of profile folders. Adding a backup option to the profile manager would be nice. I noticed some people have found work-arounds but I need a straight-forward procedure for backing up my folders. No work-arounds please, just a simple procedure. May I ask for help with this issue?

I had to re-install Windows and so I downloaded Firefox again and logged in to my account. I had sync turned on with bookmarks enabled but it wasn't syncing my bookmarks to my computer. I double checked that these sync settings were enabled on the Firefox app on my phone and I tried syncing multiple times. It transferred my passwords and other data but not my bookmarks. So I logged out of Firefox on my computer and phone, then logged back in and synced them together only to find that Firefox deleted all my bookmarks from my account completely (now they don't show up on my phone either). I looked at the forums and saw that they make separate profiles that I could access with about:profiles so I opened that and only saw 2 profiles, neither of which have my bookmarks. Is there a way to recover these since Firefox deleted them out of no where?

Issue remains - see post [https://support.mozilla.org/en-US/que.../1525355]

Is there a way to backup a profile?