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Firefox on macOS loads, opening all windows open at last Quit; then closes all windows; fails to display the window selected from menu

MacOS Sequoia 15.7.7; Firefox 141.0.2 The "one sentence" in the heading states the problem. I am unable to use Firefox. Using Safari to make this post. Firefox loads. It… (daɗa karatu)

MacOS Sequoia 15.7.7; Firefox 141.0.2

The "one sentence" in the heading states the problem. I am unable to use Firefox. Using Safari to make this post.

Firefox loads. It opens windows (I had fourteen open when I last used it successfully; I have many, many tabs). Then it removes each window from the screen. Firefox is in the Menu bar, but no windows are displayed. The windows still show in the list when selecting Window in the menu bar. Selecting a window in that list has no visible effect. File>New Window opens a new window, which works as expected. With one new window open, File>New Window opens a second.

Typing a few characters in the address bar opens a dropdown with a list of tabs, each with the affordance, Switch to Tab. Clicking on one takes down the list but does not open a window.

I would like, for a start, instructions on how to use Firefox starting afresh with no windows. First: having set aside the data that causes this problem. I suppose that might be simply a new profile. But would like instructions from a person interested in pursuing the problem with me while I continue with the rest of my life.

I'm willing to delete some data from the failing profile, is there is reason to do that, but would like to preserve at least a list of the URLs of the tabs of the windows. Or to learn how to see those in the profile data.

I see four profiles:

  <garble>.default-<13 digit integer>  Date Modified: Today  2.2 GB
  <garble>.Default Profile   Date Modified: Last June   24.6 MB
  <garble>.default-release-1   Date Modified: Last June, five minutes later  93.2 MB
  <shorter garble>.default-release   Date Modified: 2021   13.4 MB

It has been my practice with Firefox and Thunderbird to install and then to create a new named profile for use. But, as you see on the first line above, I did not assign a meaningful name.

If requested, I will post again from a new Firefox window, selecting Share Data.

Thanks in advance.

Open 1 36

FF Profile seems to have been deleted from lack of signing in, but was used 5 days a week.

Hi there, I've had a Firefox account on my workstation at work so that I can take my browsing with me when I am at a different workstation, sign in and sync no problems. … (daɗa karatu)

Hi there,

I've had a Firefox account on my workstation at work so that I can take my browsing with me when I am at a different workstation, sign in and sync no problems.

This morning I was provisioned a new laptop workstation and when I attempted to sync my profile nothing shows up. I am pretty confident I've signed back in to the correct account since I do this from time to time. Unfortunately the old workstation is unrecoverable hence why I was given a new one so I can't backup and import.

Checking the email account I used to set up the profile I found an email from March saying the account would be deleted since I haven't been active. This can't be the case because I have been using this account five days a week for the last 7 years.

Any suggestions on how to recover my profile and move forward?

TIA!

Open

all tabs that i had opened..

last night when i closed the system down, i had 5 spacial tabs with names, and apx 50 other tabs open, come to start the system this morning.. all gone.. nothing.. just a… (daɗa karatu)

last night when i closed the system down, i had 5 spacial tabs with names, and apx 50 other tabs open, come to start the system this morning.. all gone.. nothing.. just a new firefox.. all my history.. gone... this is not good, as the 5 spacial tabs that i had where from seriten sits that need to be their,and now.. just gone.. the lot... and all the setting are correct..

Open 7

Bookmark Recovery

I had a catastrophic failure of my desktop computer. They were unable to recover over half my files. My bookmarks in Firefox had links to several critical business pages … (daɗa karatu)

I had a catastrophic failure of my desktop computer. They were unable to recover over half my files. My bookmarks in Firefox had links to several critical business pages and I really need to get them back however I have been unable to access them or recover them. Is there any way for these to be recovered if the backup wasn't on? I know its a long shot but I have to ask.

Open 2

phone factory reset and lost tabs

I had issues with my phone and had to do a full factory reset. I have since logged back into firefox but I want go be able to recover all of the tabs I had open and all o… (daɗa karatu)

I had issues with my phone and had to do a full factory reset. I have since logged back into firefox but I want go be able to recover all of the tabs I had open and all of the collections I had saved. Is that possible?

Moderator note: Moved from the Firefox Desktop forum to the Firefox for Android forum.

Open 2

Bookmarks have disappeared

All of my bookmarks are gone. Four years of painstakingly organizing and labeling hundreds of items and links a d documentation gone. Moderator note: Moved from the Firef… (daɗa karatu)

All of my bookmarks are gone. Four years of painstakingly organizing and labeling hundreds of items and links a d documentation gone.

Moderator note: Moved from the Firefox Desktop forum to the Firefox for Android forum.

Open 4

Restore bookmarks, passwords and data from an old Firefox profile simply doesn´t work

I am at a complete loss on this. A recent firefox update has shifted all my site logins and passwords elsewhere in mystery and impossible to recover nor find them. I trie… (daɗa karatu)

I am at a complete loss on this. A recent firefox update has shifted all my site logins and passwords elsewhere in mystery and impossible to recover nor find them. I tried "Restore bookmarks, passwords and data from an old Firefox profile" but the profile is simply not there and the instructions completely haywire. I have nothing on the profile page. What have you lot done to make this completely unusable for the small person ? I thought I was computer savvy but now firefox is making things unnecessarily invisible and over-complex.

Open 5

I canNOT find or import my bookmarks anywhere anyhow.

Running windows 10. I installed the newest vewrsion of Firefox, and now I can see or find bookmarks anywhere. I tried the tutorial but I dont see anywhere in my computer … (daɗa karatu)

Running windows 10. I installed the newest vewrsion of Firefox, and now I can see or find bookmarks anywhere. I tried the tutorial but I dont see anywhere in my computer where a list of bookmarks are.

Open 1 1

Extension Clippings stopped working - Vers 152.0.1 Will not open / FF icon missing from Desktop / ref: 2045930

Problem w/ Clippings again today. Prior: https://bugzilla.mozilla.org/show_bug.cgi?id=2045930 Windows 10 - Pro Lenovo T490 ( Lenovo LTD installed firmware update 6/19 … (daɗa karatu)

Problem w/ Clippings again today. Prior: https://bugzilla.mozilla.org/show_bug.cgi?id=2045930

Windows 10 - Pro Lenovo T490 ( Lenovo LTD installed firmware update 6/19 & 17/26 (respectively - 1st time I've EVER seen this): 1.0.0.28 & 1.0.0.85

An icon is missing from my desktop which I normally use to open FF. I have noticed issues when NOT using this icon previously - like there is a different version or ID attached - I need to get this back. Data Loss (Clippings) / Again !! - I'm not sure who is at fault. When I display Settings - I notice a HUGE difference in that there is NO General tab (attached) as there was when I reported this (similar to me) issue last 2 weeks ago (see original problem report link).

When I use Recovery: I have a file displayed: Location C:\Users\pc\Desktop\Old Firefox Data\wu6w9pz8.default-release\sessionstore-backups Last modified 6/8/2026, 8:07 PM (3rd time in this doesn't show - right after copying the filename !~)

I believe I need to use this as my production / live version & need instructions on how to recover / restore this. I have NOT YET used Windows Recovery (but I will look at it) - Microsoft Visual C++ was installed - 2 restore points as of this morning. (I may be wrong).

Open 1

MY PASSWORDS AND OOKMARKS ARE GONE FROM NEW FIREFOX INSTALL

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 m… (daɗa karatu)

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

An warware 2

Backup file damaged

I have [[created a backup file|https://support.mozilla.org/en-US/kb/firefox-backup#w_protect-your-sensitive-data-with-a-password]] today with the latest available Firefox… (daɗa karatu)

I have [[created a backup file|https://support.mozilla.org/en-US/kb/firefox-backup#w_protect-your-sensitive-data-with-a-password]] today with the latest available Firefox and switched to a new OS. Sadly, the backup file somehow seems to have gotten damaged, even if Firefox still recognizes when I'm inputting the wrong password. On Ubuntu, where I originally created the backup and where I tested it again after things weren't working out, Firefox tells me that there is an issue with the file and that I should try a different one (which I don't have). On CachyOS, which I'm currently testing out, restoring the backup never finishes and Firefox doesn't exit cleanly. In hindsight I obviously should 1) have tested the backup immediately, 2) not have wiped my laptop prematurely, and 3) have backed up the folders manually, but I haven't. Now the question: is there some way to extract the account details from the .html file? I don't care much about the rest, but restoring the accounts in some other fashion is gonna be a lot of work.

An warware 1

Bookmarks dissappear

Hi, I just updated to the latest version of Mozilla FireFox and my bookmarks dissappeard. All are gone, I wonder how I can get them back? Many thanks, … (daɗa karatu)

Hi,

I just updated to the latest version of Mozilla FireFox and my bookmarks dissappeard.

All are gone, I wonder how I can get them back?

Many thanks,

Open 5 230