Firefox Support Forum

Windows restarted to update and all my 100s of tabs are lost (setting me back days of work!)... Firefox is set to always reopen previous tabs, but it didn't work. Recently closed tabs/windows are blank. The Restore Session page - about:sessionrestore - doesn't restore and lists no previous windows/tabs. I went into my sessionstore-backups folder and grabbed a previous.jsonlz4 that has some data but am not sure what to do with it.

Please help! This is a devastating loss of information, as I use my tabs as a to-do list and had many in-progress projects with resources that I cannot all recover just through history.

Hi! I wish to edit my limit on how instances firefox runs but i cant. I searched up how to change but cant find the option for it. It said that i should just untick use recommended setting in performance but all that happens is tht i get anotheter option to untick hardware accleration.

session is completely gone. I tried to restore it via various help articles and forum posts but without success.

I see a stg-backups-ff-126.0.1 fodler in my download folder which contains information about tabs that I had open. But I don't know how to use firefox to use that file.

I alos tried to the \sessionstore-backups folder with files named like "previous.jsonlz4" but I do not get the menu option for restoring a session.

from a file named "error-sessionrestore-1718212432477.txt": 1718212432149 SessionStore ERROR The session file is invalid: : TypeError: state.windows[0] is undefined(resource:///modules/sessionstore/SessionStore.sys.mjs:1163:11) JS Stack trace: initSession@SessionStore.sys.mjs:1163:11 onBeforeBrowserWindowShown/<@SessionStore.sys.mjs:2035:35

Hi,

I use ClassicPress (fork of WordPress) and I have a problem when requesting a password reset link for it.

When opening the email received to reset password in the firefox dev edition browser and click the reset link I receive an error stating that the link is invalid.

I discovered by trial and error that copying the same link and pasting it manually in a new tab of the same firefox dev edition browser solves the issue because then the link is recognised as valid.

This happened after the update I received last week.

I am a linux mint user if that helps in tracking down the issue.

If I open a second tab on the screen it says the connection has crashed and keeps doing it if you try again. If you reset it resets Firefox including the other tab.

FF just did an update and now I can barely use the browser. Its slow and then spins and crashes... it took me 6 minutes to just get this open and type this. All my links and sign ins are on it... ugh... How do I reverse the update? thanks

I receive e-mail from websites where I subscribe. Many times, the message from the sites (kelbyone.com, to name one) contain a graphic (jpg) that does not display in Outlook.com. Microsoft Tech Support is unresponsive. The sending websites refuse to help.

It seems to me that FF chokes on the length of the hyperlink. Here is a sample: https://kelbyone.acemlnb.com/lt.php?x=3DZy~GE2JaTN5XV.-wy5heOd~nAnuwAjluw2Z5PEIaOb5p8qy0y.0uJz2nRzit~yjvYwXncWJXCf657

If I paste the hyperlink into the search window, the page will load. When I forward the e-mail from Outlook to yahoo mail, the image displays.

I am running extensions Adblocker Ultimate and DuckDuckGo Privacy Essentials.

I would like help with this, at least, to identify where the problem is.

Hello,

Relevant system referenced below:

MacBook Pro 2021 Mac OS 14.5 Firefox 126.0.1 (64-bit) Carbon Copy Cloner 6.1.11 (7673)

I have a case of vanishing bookmarks. I quit Firefox last evening with command-Q as I’ve done a thousand times before. When I launched it this morning I was greeted with Firefox with an empty Bookmarks Toolbar and “Getting started” message. I opened a Manage Bookmarks window and everything there was empty too. I found, as well, that all of my saved UIDs and passwords were gone except for three, two of which I haven’t used in months. Weird.

Next I opened Firefox Help and found information about Troubleshooting Mode; I restarted in troubleshooting mode but nothing had changed. After restarting in normal mode, I tried Restoring Bookmarks; I chose Manage Bookmarks from the dropdown and then clicked the button in the Library window. Restore showed only one file and it was created today with only 14 items. Selecting Choose File… showed Desktop with Old Firefox Data highlighted. In that folder was only w34y3u9y…628 folder. From there I selected bookmarkbackups and the only file there was bookmarks-2024-06-06_11…lz4, a file created at 3:33 today. I found the key4.db file and it was created at 3:33 today.

I have Carbon Copy Cloner and use it for a weekly backup to a remote SSD drive. There are a year's-worth or so of weekly backups on that device. I tried trashing Firefox and reinstalling it from last week’s backup. While this worked, it didn’t solve the issue; it was still like a fresh copy of Firefox with no bookmarks.

I’m hopeful that I can restore the bulk of the lost bookmarks from CCC but I have no clue as to which files/folders to restore and I don’t want to guess. If you think this is possible, please tell me which files or folders to replace. Should I delete the files to be replaced from the current system and if so where are they located? I’m comfortable using Terminal for basic purposes but need explicit directions for entering commands and navigating to locations or files.

Thanks for your time,

David

When I attempt login to store account, I get the error below. I have uninstalled/reinstalled Firefox to no avail; login works fine in MS Edge

{"sec-cp-challenge": "true","provider":"recaptcha","provider_secret_public":"6LfU2I4aAAAAABeLkTGHOItQ5XTtsv2BpEBonIj_","branding_url_content":"/_sec/cp_challenge/message-4-4.htm"}

I started having new tab crashes a couple of weeks ago on Firefox and Brave browsers. I have looked in the extensions settings and do not have any added extensions so that did not cause the problem. I also run Norton antivirus and Norton Ultimate utilities software and regularly clean out files and scan my computer for malware. Not sure if Ultimate Utilities is the problem since I have had other problems in the past with that program. Also, I wonder if Windows updates caused this problem? This has also caused problems in the past. To get around this problem I have to copy the link then right click on my mouse and open a new window the paste the link. Very annoying and time consuming. How do I fix the continual tabs crashing problem?

Greetings, every so often I'm having an issue loading pages for certain sites that aren't sketchy at all. The most recent one is TireRack.com. I'm shopping for tires for my car and Firefox is loading all the other sites I've visited but it won't load any page from TireRack. They are a legitimate shopping site. It happens from results of a Google search but I've also tried typing the main page of the site's address into the address bar, clicking various other links that display below the actual search result that go to other pages within the site, etc. The site loads fine in both Chrome and Edge. This happens every so often and it's always a legitimate site and the exact same behavior. I can't recall any other specific sites at the moment but it's enough to have me pretty irritated today as when I'm shopping I like to have multiple tabs open with all my options for comparison and price considerations and today I have to have one of them open in a different browser which makes it much more difficult to keep tabs on especially where I'm used to only having one browser open for all instead of having to remember that one of my options is open in another browser. I have glanced through my browser setting as well as my windows security settings but I could spend hours in there trying to figure out things and potentially breaking other things myself, which I don't like doing. Any suggestions or other info on what could be going on will be much appreciated, and thanks in advance.

Ray.

Hello,

I have been facing this issue when accessing Google Drive using Firefox, after selecting a file and clicking on "File information" option the "Details" and Activity" tabs simply don't load, as you can see in these screenshots.

Also, I found this thread also here on Mozilla Support from two years ago that reports the same issue. Apparently the bug was solved but ended up returning in most current versions.

I opened the current thread just to report this bug again. Thanks.

EDIT.: Another user reporting the same, his thread was archived: https://support.mozilla.org/en-US/questions/1422875

In early May I started having problems with Google on Firefox. Sometimes the Google home page won't load up at all. Once it does load up sometimes the searches work, sometimes the search just times out and goes back to the empty search bar, also when I click on links to websites they time out too. If I go straight to a bookmarked website, that seems to free things up and the next Google search I do will work. I've uninstalled and reinstalled Firefox but it doesn't make any difference. Google works fine on Chrome and Edge. Any advice would be gratefully received - please note I'm not technically minded! Thank you.

I can not log in to Outlook anymore on my computer when I use Firefox, but it is possible when I use Edge. But I prefer Firefox. What to do about this?

Billy

Lately, I have been getting a pop-up error when I start and close Firefox. The error reads: "XULRunner Could not determine any profile running in backgroundtask mode!"

I have found posts such as this one: https://support.mozilla.org/en-US/questions/1398228 and other posts suggesting to disable the scheduled task in Windows Task Scheduler, but none of the solutions have worked thus far. Anyone know of any other solutions?