Firefox Community Forum

Desktop Computer. Still on Windows 10.

Not sure of category. This began when I launched the computer today. I opened Firefox and got the message "The bookmarks and history system will not be functional because ....."

When I started to shut down the computer (first mentioned step here) I saw there's a Window update. I selected Update and Restart. That went okay, but still don't have my Firefox bookmarks.

So I clicked on Learn more. I found the Firefox > Profiles folder. There are two folders, one from today - qkuxm6ws.default-release - 15...... 0196 with 94 items, and 7ghfiw 15.default, from Jan 5, 2021, with 3 items. I assume I should use the one with today's date.

BUT .... from this point, the information on this website was full of information - NOT step-by-step information telling me what to do with which files in this folder.

Also, I have McAfee as well as Windows Defender. I opened Windows Defender Firewall. State is On. Notification state: Notify me when Windows Defender Firewall blocks a new app. I've gotten no such messages.

Under allowed apps and features:

 "Firefox ... private not checked; public checked.."  
 "Firefox (C:\Program Files\Mozilla Firefox" - private is checked, public not checked.  

Can't make changes.

Under Overview window: Not checked is "Inbound connections that do not match a rule are blocked."

• • • • In the "Monitoring\Firewall folder" - Firefox (with path) is listed twice. Both entries have Private, Allow, NO Override -
      • Differences - the first has UDP; the second has TCP. Nothing under "Group."

My last bookmarks backup was Jan 2025. 😕 😟

I don't know where else to look or what to do. Please help. Kami

For the very first time, today I got the following, "Gah. Your tab just crashed." and it now happens every time. What's up? Is this a Mozilla problem? Should I be moving on to a new browser? Help!

I've been using Firefox for a while, and while there are many things I like about it, it has always been a resource hog. In the past I could get around this by just killing Firefox in Windows Resource Manager and restarting, but ever since getting a new computer an upgrading to Windows 11, it's gotten worse. Every couple of days my computer freezes for 10 or more minutes, I'm having to do a hard reboot ever few days, and I'm even bluescreening about twice a month. I'm pretty sure Firefox is the culprit because killing it will usually resolve the issue.

I'm wondering if there is some way to put Firefox in a sandbox so it does not consume nearly all available memory and other computer resources. It is by far the biggest consumer of resources on my system and I do not want to dedicate 4GB+ of memory to an app that is just showing a couple of web pages and playing YouTube videos.

My account was tagged/blocked by Mozilla. The account at issue has 2 factor enabled. I have a landline but now it will only text to authenticate. I had a school e-mail account but they changed and upgraded and dropped all accounts except for new/continuing students without notice (basically everyone until registration). Bottom line my phone was disabled by one vendor and my recovery e-mail by another. To access the microsoft store to correct an issue it required a new passkey. I submitted one. Now mozilla has blocked my password and microsoft requires me to login to contact the store or support but of course my issue is logging in. Around and around I go. I cannot correct a charge, microsoft is free to use my credit, and I have no way to notify anyone that something is amiss with the charge ( paying for a service already purchased, ie. double charged. I also noted a comment about that request being from outside the continental US, but have no ability to contact anyone nor to check/access my account. WTF

Mozillers,

I depend heavily in my environmental and other work on Firefox and am grateful for its ability to restore previous tabs when my laptop, not infrequently, stops working abruptly.

Now the much-used bookmarks have disappeared. A search site states promisingly:

"To restore Firefox bookmarks, use the built-in backup feature by going to Menu > Bookmarks > Manage Bookmarks > Import & Backup > Restore, then select a dated backup or a manual file (like a JSON backup) to bring back lost bookmarks..."

But my Firefox's Bookmarks drop-down menu has no Manage Bookmarks option. PLEASE, what must I do?

Elsewhere I managed to find this file which apparently contains recent bookmarks:

"C:\Users\User\AppData\Roaming\Mozilla\Firefox\Profiles\unk14jlv.default-release-1647366062305\bookmarkbackups\bookmarks-2025-12-26_95_4IdGtYxezJpwuH1UIiT1bRwe1K6bcGO8rv0mqa9rUWU=.jsonlz4"

But attempting to open it with Applications\firefox.exe (default) accomplishes nothing.

FOOL-proof instructions would be wonderful. Thank you.

Windows 10 After restarting computer, the bookmarks were missing (I somehow managed to get them back), the Instapaper and Bitwarden icons are missing from the menu bar and video's will not play (but will on play on MSN). While trying to figure this out, the Puzzle/Add-ons icon is also now missing. The instruction in the photo do match what I see when clicking on the Puzzle.

Seit dem 25.12.2025 habe ich meine Lesezeichen und Passwörter, wahrscheinlich nach einem Update oder einer unbeabsichtigten Fehleingabe nicht mehr zur Verfügung. ich möchte meine Firefox-Version wieder auf den Stand vom 24.12.2025 zurücksetzen. Was kann ich tun oder kann man auch telefonisch Kontakt aufnehmen in deutscher Sprache?

I opened FF this afternoon and it op0end like a new first time install- asking about setting up some damn profiles and showing news, AI, weather and crap I do not want or use..

I can not seem to restore it. All bookmarks, PW, menu bars and links are now gone.

I just opened Firefox and there was a tab with three cute little foxes on it, but I reflexively closed it.

I closed it without even checking the contents properly, so I have no way of finding out. I also looked at the history but it wasn't there.

It was a very simple drawing (the eye was represented by a single vertical line).

Can I see this painting again? Or can you tell me the artist who painted it?

Sorry for the strange question.

Months ago all bookmarks just disappeared. I tried to restore many of the backups but only was informed "Unable to process the backup file." each time. Tried again today with same result.

When this first occurred I obtained an article with the steps to solve this problem and did them in order. Reinstall didn't work nor the above. Nothing seemed to work. Note that no new bookmarks then and now can be created.

So I have been trying out a new browser which did import Firefox bookmarks - therefore are readable - which placed them on the favorite menu without prompting. These are listed as Firefox Bookmarks. But this is not where new bookmarks are saved. Thus the same topics are in two places. So I attempted to import the Firefox bookmarks manually. It worked but now every folder is on the favorite menu instead of being merged with the new ones created. Of course this is absurd so were deleted.

I don't particularly like the new browser and actually would prefer to get Firefox straightened out.

I don't recall much about the events when this happened but it did not seem just after an update - possibly a week after? I have four extensions: AdBlocker for Youtube, ClearYRLs, DuckDudckGo, and Norton Safe search.

Your wisdom and experience would be appreciated.

Ed

I have been using pro cococut for several years with Firefox and have an issue with downloading and saving a file that is over 1Gig, the screen shows that the file downloaded but, when I try to save the file it errors out that there was not sufficient memory and will at times actually becomes locked-up & kick me out of Firefox. Most of the time I have to hit Ct-Alt-Delete and end Firefox/Mozilla. Don't know what to do to remedy this error. All files less than 1Gig download and save with no issue.

Animation triggers my migraines.

Many, many, many websites trigger zooming animation on mouseover. I can reduce the frame rate to help deanimate this, but I would rather not animate it at all.

On the whole, I think it'd be easier to block all these effects. How can I do that in Firefox?

I'd prefer to still see where links would lead without clicking on them. And I'd prefer to get tooltips working, but I increase mouse cursor sizes, so they're already broken.

Using Firefox as my browser, I have over the last few days been unable to maintain a connection with the internet.

You will please excuse me as I am a 70 year old with limited understanding of the interaction of the internet and its terminology.

A couple of things you may need to know to offer me advise I just received a refurbished Dell laptop with windows 11. I'm using firefox as the browser comcast xfinity is my ISP I subscribe to NordVPN and NordPass

I am having a problem maintaining a connection to firefox.

I can look on the taskbar and see that I am connected via Comcast and the NordVPN and yet I will have displays of "you are not connected to the internet" or similar wording. If I need to include that, at these times, I look at the task bar and I confirm that I am connected.

In addition to this Windows 11 laptop, I have two active android phones. My Gmail, last I checked on the laptop was displaying vividly inaccurate time stamps to incoming emails. My phones however show the emails with accurate timestamps. (A difference of 4 to 6 hours like EST New York to middle of the Pacific Ocean)

I do have photos of these events, screenshots of sorts... but they're on the phone. I'm currently using the firefox browser to offer this post/question, but I sit in anticipation of it acting erratically. Finally I have downloaded a different browser to use while the firefox issue is being trouble shot.

Rather than add more possibly irrelevant information, I'll send now and let the community ask me questions.

Al R

Ever since the last update I've been having an issue with my bookmark bar. I like to have it visible. But lately I will be browsing the internet try to click on my usual bookmark and it's not there! All the bookmarks in my toolbar are missing. They have not been deleted but have all been moved to not in my toolbar and I have to go fish them out. After I fix it time will pass and I notice it happens again! It's super annoying. Since this times well with the last update I blame the update. Can you either tell me how to get my bookmarks to stop dancing around or guide me to downgrading my version of firefox?

When using ebay, I am unable to open additional pictures of a listed item, view an enlarged picture of the item, save an item or to bid on an item, while using my computer. I am able to do these things using my phone but it is much less convenient. This came about in the last week or so and I have been unable to determine the issue. Similar accessibility issues are not apparent on other sites. Obviously I have not been able to sort this out myself and am reaching out to see if you may have any suggestions as to what I may try.

Thanks you for your assistance, Dave Herman

Fix "The bookmarks and history system will not be functional" error message. I fixed it 2 days ago thanks to your method and today I find myself in the same situation once more... And I confess I"m fed up. Not the only issue with Firefox (like denied access to many webpages) although I share its values and then I'll be giving up !