Firefox Community Forum

So before few days firefox decided to automaticly update. after thet no pasword was saved in system. undery system data 2 files: logins.json-1.corrupt/json-2.corrupt without any data in files (but size is 130KB). i need these logins ASAP.

Hi,

i can see all my previous tabs in history but can't reopen window?

I didn't close those tabs, one time i opened mozilla and they were all closed.

Help me, thank you

The regular version of the browser is open with a bunch of pinned tabs and a private version. And!!! If you close the REGULAR version , but DO NOT close the PRIVATE one before that, then when you try to reopen the REGULAR one, ALL OPEN WINDOWS AND TABS will BE DELETED!!! WHY?!?!

And these tabs are not saved in history, because they WERE NOT active in this session!

Where do developers' hands grow from?! Well, this glitch was a couple of years ago! But now?! A month of work preparation went to hell because of Firefox failure... How do I restore tabs that were just blown away by the browser?

I use the most up to date Firefox program. I needed to reinstall windows from scratch so backed up my files using the Firefox Backup option. When i try to restore the files, it restores only 2 bookmarks, 1 called Learn More, and another, a folder called How to Restore, and in it a book mark called Download. The bookmark just takes you to the Firefox home page. I dont know what to do.. there are bookmarks I need, so hope someone can help. Attached is an image of the file Firefox Created.

Running Windows 10 but with extra year of security updates. Several web sites were running very slow or not loading at all. So I tried doing system restore - only went back 3 days but afterward said it had some problems, and link to Firefox did not work. So I did system recovery back to time from which I had just done restore. But I had no link to Firefox so had to download it new. But now I have none of my previous tabs, links, saved passwords,,etc. I'm hoping my previous Firefox is still on my PC and there is a way I can run it.

I got logged out of my Firefox account and upon logging in a bunch of dummy "sync" data replaced all of my bookmarks, settings, ect. Is there any way to undo this?

Running v150.0.3 on a Windows 10 PC. I have (HAD) 5 windows open with about a dozen tabs in each one. Just realized that one of the windows is gone! Every time I startup Firefox, I always allow it to automatically update the version. I have a bad feeling this missing window issue happened during the most recent update (last week?).

Has anyone ever experienced this issue or have any ideas how this could have happened? Any chance of recovering that window? I have weekly backups of the SSD containing all my Mozilla files & folders (Firefox and Thunderbird).

Thanks

Recently, Firefox updated and ask me to setup a profile, which I have not yet done since importing my data from google chrome in 2025. After skipping the setup, Firefox then deleted all my data and it has since been irecoverable. I have already checked the box last update that specifically said to not ask me again for setting up my profile. After the recent update, the question popped up again and now I cannot recover my original profile, all my browsing history, all my browser-saved data, and all my cookies and logins

Whenever my laptop starts up,firefox with all of my tabs always starts up with it. When i rose up earlier in the day and started up my laptop firefox with all my tabs opened up as normal,but this evening everything is gone. I had at least 20 tabs open and they were all important. There was no option to recover the tabs and this isn't the first time this has happened,this is at least the third time that this has happened after the last year and a bit. This is incredibly annoying and frustrating. Is there even any point in asking the community how this can be resolved?

Hello! I accidentally logged into my account after switching to a new computer, creating a new recovery key. Now i do not have access to all my saved passwords. I have my recovery key but cannot find where should I type it to get back all my information. Is it possible to recover my information using the original recovery key, not the one I accidentally created? I really need to get the access to all my saved passwords, please help me with it. Thank you!

Good afternoon

Copied Firefox profile in W10

Pasting into Profiles folder in W11 but it won't let me do it. See attached.

I have enabled LongPaths in the registry but that hasn't solved the problem.

Please advise Michael