Firefox Community Forum

Firefox just auto installed the latest version 145.0. After about 15-20 minutes of usage, Firefox stops responding and hangs. I ran the Task Manager (Windows 11) and found Firefox was consuming 96% of the available memory. I have to kill the task to regain control. I'm left with switching to a new browser and will probably never go back.

Using Firefox 145.0 (64-bit), "Firefox is up to date" on PC with Windows 11 Pro.

I was so pleased when Firefox's Group Tabs arrived. I often have about 12 tabs open to do Railway research. So I thought, Group Tab, great idea. Save a group of tabs as one tab. Instead of creating a Bookmark Folder and each time opening all bookmarks from said folder, what better way to do than opening one tab. Or so I thought. I also created a "SHIP" tab for my hobby in the shipping industry, so I could have two group tabs that could be collapsed making the tab bar tidier. I saved an closed each group tab then closed down my PC. Next on restarting, Firefox starts up automatically as chosen by me. Both RAIL & SHIP tabs reappeared without me doing anything. Great! However yesterday, I inadvertently opened another Firefox window, forgot it was opened. So when I shut down my PC, I closed the Firefox browser and then discovered the over Firefox window I had opened. Closed it shut down my computer. Of course when I opened my PC today, Firefox started automatically, but with the tab that I had open in the last Firefox window. No problem I thought, I will just open the saved Group Tabs. It was a problem, where are the Group Tabs saved? Could I find the location? NO! I looked in Bookmarks, all the various History lists, even the down arrow to list all tabs. Nothing, the Group Tabs are none existent. I have checked on the "about:config" section for Group Tabs and everything is enabled "true". So where are the Group Tabs saved? I have been with Firefox for around 14 years, often citing it as the best browser. But over the last five years I find myself using Chrome more and more. Chrome has Group Tabs which do not not need the users to save them, they are saved automatically, and are easily found on opening the Chrome browser. Why doesn't Firefox have this?

Witam , Zakupiłem nowy komputer , zalogowałem się na swoje konto Firefox . Zrobiłem synchronizację , ale żadne dane się nie pobierają , ani zachowane zakładki oraz zapisane hasła. Chciałbym odzyskać te dane. Chodzi mi o dane z 14.11.2025 Dziękuje i pozdrawiam

After upgrading my Firefox to version 145, a blue line appears at the top of the browser window when it's in full-screen mode and the current window is focused. I know this is to remind the browser window that it's currently focused and interactive, but I really hate this notification and want to make this conspicuous blue line at the top of the window disappear. I couldn't find a relevant option in the Firefox browser settings. Does anyone know how to set this up?

Please help me to disable this focus tip,thanks!

This morning when I started up Firefox it had a pop-up about the new profiles feature, asking to create a new profile. Just out of curiosity I clicked the create profile button to see what the interface would look like. Since I didn't actually want to create the profile I hit the delete button, but nothing happened. So I closed the window. I then tried delete the new profile (then called "Profile 1") by hitting the trash can from the choose profiles screen. Still nothing happens. At this point my original profile window is still open, but I close everything to restart Firefox in hopes that it will allow me to delete this profile I never wanted to begin with.

The Choose profile window comes up, I select original profile and nothing happens. I can open the new "Profile 1", which I have since labelled "Bad Profile".

D:\Users\<USERNAME>\AppData\Roaming\Mozilla\Firefox\Profiles doesn't appear to have my original profile anywhere.

I'm deeply concerned this beta feature I never asked for has deleted my original profile when it should have deleted the new profile.

Lately , when clicking on the link in the Winloot Live emails in order to enter , quite often the link causes Firefox to freeze. Task Manager shows that the memory usage more than doubled. Only way out is to use task manager to end Firefox. Possibly an issue at the site itself. Anyone else seeing this?

When I try to "sign into" Firefox using Google Chrome, I see the following message: "This account is not active. Please contact an administrator if you believe this is an error." I do not know how to contact an administrator. I do not see this statement when I sign into Firefox using my Firefox browser. Maybe (I think) the issue is that I need to use my Firefox browser to "sign into" Firefox (and, not Google Chrome). Thank you for your comments about this.

Hi, da anscheinend Firefox zu faul ist um einen eigenen Support an de start zu bringen, muß ich es auf diesem weg probieren. hauptsache man kassiert die kohel für die plazierte werbung. bei einem Win10 64bit starte Firfeox nixht mehr. auch nicht als admin. wenn ich es anklicke, passiert nichts und ich bekomme es auch nicht im taskmanager angezeigt neuinstalation bringt nichts danke euch

This concerns the display of bookmarksto the the left of the main display. Fot the record, this is installed om Magea Linux, vers 9, from the OS repository, and is Firefox vers 140.4.0esr ( 64-bit). Up until recently the display was variable in width, and once the box for 'show bookarks' was ticked, the bookmarks display opened in any new ;Firefox' brought up. With the two new features, I have a pair of niggles. One, is that the new sidebar, being fixed width, cannot be reduced. Taking up more screen 'Real Estate', that I consider would be better utilised for the main panel. The other niggle, is that ticking 'Show bookmarks' is not permanent and has to be re-ticked, for any new Firefox' display. I have another machine running the same version of Mageia. I opened this today, and it, while still showing the same version of Firefox, displays the old version. Perhaps, since the Mageia support section have not yet.sent a prompt for update. My query, is. Is it possible for me to return to the old style display, or is there a setting that will do so. The new display, having several options, is possibly an advance. But, for me, bookmarks display is paramount.

Thanks, Rod Goslin

After the 145.0 update when I start Firefox both the menu bar and the top bar with the exit icon are missing. This is the first issue I've had since using Firefox when the new revision was in the 20's. Per some quick Support research, I press F 11 twice (NOT once) to restore the screen to include the top bar with exit icon and menu bar with my Windows task bar showing (as normal for the past 2 decades). When I close out Firefox in less than full screen mode and then start up Firefox again, it properly includes both the top bar with exit icon and the menu bar. HOWEVER, if I close Firefox in full screen and then restart, I am missing the top icon bar and menu bar... again. Press F11 twice and the bars are back to square one. HOW DO I FIX THIS SO I DON'T HAVE TO PRESS F11 TWICE ON EVERY STARTUP TO RESTORE MY SCREEN?????? WHY DID YOUR RECENT UPDATE CHANGE MY SCREEN SETTINGS?????

Does Firefox provide firewall and/or security programs for my computer running on Windows 7? I cannot buy a new computer and want to make sure I am protected - my updates are up to date and I have had faith in Firefox. Otherwise, can I use an ADD-on to do the job? Please advise. thank you very much

I have been unable to sign into my bank account online (on this computer) . Been prompted to update my browser (Chrome, Safari, Forefox, Microsoft Edge), I checked my Firefox version, says up to date. Still unable to access. Spent hours frustrated. Please help. thank you so much

Firefox did an update and "couldn't find XPCOM" and crashed. Uninstalled and re-installed but now my Firefox icon opens a website "nine.com.au". I WANT MY FIREFOX BACK!!!!!

Reporting an ongoing issue where the Saved Credit Cards section is missing from Firefox’s settings. Autofill for credit cards still works in the browser, but I cannot view, edit, or delete any stored cards because the entire UI section is gone. The Payments / Saved Credit Cards section does NOT appear under Settings → Privacy & Security → Forms and Autofill. Autofill still fills credit card data, so Firefox clearly has stored cards. I just can’t manage them.

Older threads are now closed. Here is what I already checked

I confirmed the following in about:config: extensions.formautofill.creditCards.enabled → true extensions.formautofill.creditCards.available → true Set extensions.formautofill.creditCards.supported → "on"

Restarted Firefox

Hello, After performing a clean install of the OS, I logged in to my firefox account. But it is not syncing the passwords. I tried installing firefox to my phone, also not syninc. I think btw, it is syncing but my passwords are not there. Here is the log: https://pastebin.com/DH0wuERM Any help appreciated, because there were more than 200 passwords there. Thank you