Firefox Community Forum

I went away for a week, and during that time my iMac (apple desktop) turned off. When I rebooted it last night, Firefox loaded at the start as it has for years, but ALL of my bookmarks and activity history was gone. I've been collecting those bookmarks for nineteen years, and while there's a lot of useless stuff I've collected over the years, some of it is very important.

Please help.

Hello,

"The bookmarks and history system will not be functional" error message has suddenly appeared in just the past couple of days on my new DELL Inspiron 15 3535 with Windows 11. I have followed the first few items on the Mozilla Support page that comes up as soon as the initial Firefox opening page appears and that has not corrected the problem.

I have tried to follow the next few steps but can't really find what it calls for because I don't understand what it's talking about. I am not of the tech generation and do not speak the tech language. Most of the terms in there I do not know what or where they are on the laptop.

Is there anybody who could help me saw through the terminology and give me some ideas on how to simply solve my problem? All I really want to do is get to where my bookmarks are hidden and put them back in place where I can use them again.

Thank you in advance for any help anybody might have.

Kind Regards, Tom B.

I was using my computer normally until I noticed one of my applications had an error. I could not close the error message the normal way, so I decided it would be a good idea to hit the "end task" on the error message, which caused a blue screen error. "No worries," I thought, "I'll be able to get back to where I was right after my computer restarts." Oh, how wrong I was. Upon logging in to my computer, Firefox opened to... the screen I got when i first installed it? As it turns out, the Mozilla folder in my AppData folder was completely erased, along with all its contents. Is there a way to get my data back?

idk where i must to say or why!n this doesnt help atall,but well...

i'v change my browser many hears ago for things like good addons,extension n like this reasons.. (sorryfor my poor english but i hope tht will be understandable.) but between some of them,more important was that opera 2times or maybe more ithink when outo update.or maybe 1time for i closed accidentally my tabs and all goen and hadnt any way for...

mozilla was good but idonno why this time all goen just by one click after i opened and clicked on download.or update button,that topright of screen pops EVERYTIME.wue!well,idk wht but w.o any clicks..miss clicks or whtevr,all tabs are remains but with out adressz or able to open.just nothing happening,like empty,umm,blank tabs.

i have all ma tabs bookmarks cuz it was important to me.bu idk how to open back all of them.ther are many and iv see many tabs in my history,but i wants last opened of a site,not all times i openes and many duplicates,not last time and not a click for all..

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After viewing a livestream on Mozilla browser my screen locked up and I had to restart/reboot. When it reloaded all my settings and presets on my homescreen were gone or changed? How can I restore my mozilla settings and profile to an earlier time to reset to my original settings?

I was prompted to do an update today and it erased all my bookmarks. I have a saved bookmark file that is a JSON file type but it won't let me import that b/c it's not HTML. I have a lot of saved bookmarks for work and really need to get them back.

I am trying to find the files for my passwords from an old profile after Firefox just updated and created a new profile. I have just created a Mozzilla account so my profile can start to automatically update with all of my old passwords, but I first need to manually transfer them from my old profile that didn't have a Mozzilla account yet. I have been following the steps for doing so from the "help" pages, but I haven't been able to find the files for my passwords.

I opened a profile that I had just used recently to a blank tab bar. I closed it and the sessionstore-backup folder did not have a recent backup, The most recent about a week old.

Just for testing, I tried to restore with one of the upgrade.jsonlz4 file, about 2 weeks old, but it also had no session. I then restored one that was 2 months old. That one had a session

Now, Firefox no longer generates the upgrade.jsonlz4 files

You cant just delete all my bookmarks. Im almost in tears to have lost so much. This is beyond a joke, beyond any kind of punishment or war-crime.

How can you have the ability to delite so many bookmarks that people treasure and live with on a whim through b.s. with no apology, no meaning or reason given.

You are atrocious. This action will have caused immeasurable pain and grief to me because you suddenly decide one day you can wipe out all bookmarks on an account for no reason at all.

Shame on you, you absolutley evil harridans.

Yesterday, I lost most of my bookmarks in several Bookmarks folders. These are critical to my work with several non-profit organizations. All efforts to follow Mozilla's troubleshooting advice and use the Manage Bookmarks functions to restore or import backups in my Profiles folders are met with the "Unable to process the backup file." message. I have a number of backups available, any of which could potentially resolve this issue, but nothing I have tried is working. Please help! Thanks, Shack

I opened Firefox (V 145.0.2) on my Windows 11 laptop today and noticed that the starting window was the only one open, while I have had at least five windows open for quite some time. The "History|Recently closed windows" option is greyed out. I have closed and restarted Firefox dozens of times and my windows always came back until today. Is that window/tab history stored somewhere where I could recover it?

Thinking about backups of the browser state, I looked for my profile folder and discovered that it is empty - \Users\<username>\AppData\Roaming\mozilla is empty except for a file named vpn.moz. I then discovered that my profile seems instead to be stored under \Users\<username>\AppData\Local\Packages\Mozilla.Firefox_n80bbvh6b1yt2\LocalCache\Roaming\Mozilla\Firefox\Profiles with the folder name e5di8bjy.default-release I now learned that this location is standard for installation via the Microsoft store - the so-called MSIX version. But it is wrong that the "About"profiles" page shows that my profile is in the AppData\Roaming, not the Packages, location. When I try to open that profile folder, I get a message telling me that it is not available on this computer. It seems like the profile info should be aware of the actual location?

Dear Community,

Since more than a month, when firefox was updated, all my bookmarks seem to be gone,which includes a lot of valuable research made over the past few years.

I have tried all suggestions that google give me to restore my bookmarks, but as far as I understand, there are no newer ones since 2019 (nor older ones than 2018) on my computer? That's what I find in a folder called 'bookmarkbackups' with json-files. Separately I also searched for 'json' and '.jsonlz4' and found nothing after 2019. Also I searched for .html, but nothing seemed to contain bookmark directly.

When I go to manage bookmarks > 'import/export' icon in the upper bar, it suggests two options, for 'nov 13 2025', or today's date), of which none provide me with any bookmarks.

Can I somehow still recover my research?

Do I really need to backup manually?

Or need I start saving all URLs in a word-document for my new research project?...

Firefox seems to update regularly, I currently have version 145.01. (I work on a Mac 2021, with Ventura 13.7.8)

I highly appreciate any advice on this matter.

Kind regards, Maria

I just moved to a new Windows 11 PC from my Windows 10 PC. I backed up my Firefox profile and put it on a portable drive. I loaded Firefox on the new PC and then found the folder where the profiles are. I added the profile folder from the backup. Firefox has not found it and there is no way I've been able to discern to search for it.

I added the anti-virus after trying to set up Firefox.

Here are the particulars: Firefox version 146.0.1 (64-bit) Windows 11 Application Binary: C:\Program Files\Mozilla Firefox\firefox.exe Profile folder: C:\Users\xxxx\AppData\Roaming\Mozilla\Firefox\Profiles\xxxx.default-release

Any help appreciated.