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I have a lot of Firefox windows and tabs open, and I really don't want to lose my session.

I wanted to open a webpage in Firefox in fullscreen mode. But evidently there's some kind of serious flaw in Firefox that makes it incapable of opening webpages in fullscreen mode. Everyone says the only workaround is to open the webpage in kiosk mode. So I tried it.

But now I have two big problems:

1. One of my Firefox windows, with all its tabs, is stuck in kiosk mode. (Even if I close the window and then restore it with Ctrl+Shift+T, it's still in kiosk mode.)

2. All new Firefox windows I open with Ctrl+N are also stuck in kiosk mode.

I don't know what to do, and I'd really appreciate any help. Thanks!

Hi,

Firefox version: 139.0.4 (64-bit) OS: Windows 11

I have been having issues where Firefox tab will just crash out for no reason it appears and it happens at random times and once the tab start to crash, and I restore it, it will crash again and again. The only way tog et out of the loop is to restart Firefox.

I have tried: Refreshing/Reset, Clearing Cache and History removing all themes, disabling extensions, disabling my anti virus. Turning off hardware acceleration didn't make any different.

I currently have 2 extensions enabled: uBlock Origin 1.64.0 and Bitwarden Password Manager 2025.5.0

In the about:Crashes I have reported them all and they seem to have the same type of reasons in the Raw data/Minidump which are: EXCEPTION_ACCESS_VIOLATION_WRITE EXCEPTION_ACCESS_VIOLATION_READ

Any help as to what to try next?

Gaz

Does FF offer a setting to address the following two incompatibilities?

1. In the iCarol web app, as the user is approaching the timeout limit, in Chrome the browser tab flashes a warning. This does not happen in FF.

2 In the Diaplad web app, if the user needs to record a voicemail greeting, in Chrome this ability is present. In FF this ability is not present.

i have run this add on for as long as i can remember, recently whenever i open Firefox, Bookmarks Search Plus 2 Opens expanded every time, Bookmarks Search Plus 2 Opens expanded on the left hand side of the monitor every time. I cannot seem to get Firefox to open a new browsing session OR a new tab without the left almost quarter screen to show Bookmarks Search Plus 2 . How do i get this to stop? I have closed it and shut down FF and restarted, same result.

[edit] I was using my phone to post this question and inadvertently posted it to the android forum. This is a DESKTOP question.

I'm trying to sync my tab groups across my desktop/laptop. I have sync enabled through the settings and I've checked every box, but I don't seem to see an option for syncing tab groups specifically. It syncs all of my bookmarks and active tabs, but the groups seem to be unique to each device. Is this feature available? I might be looking in the wrong spot so if anyone has any insight that would be great! Cheers

I am sitting in hospital with a weird problem. The connection is open and thus not secure. I have successfully connected my 2 android devices, however my Windows Asus laptop is being barred by firefox. I only run firefox. It is a dead end because firefox refuses to allow me to access the net at all. So now I have to get my wife to go and download chrome and see whether that will work. Why can I not override as u understand the risks I also use Norton 360 with its VPN.

I am satandalone user win 10 am administrator for my personal pc Firefox has been hacked and says it is managed by my organization. Norton nor bitdefender can get rid of the malware that has done this. Is there a patch or malware fixing bit of software that can clean this infection from my computer please. Chrome has the same problem so I have had to uninstall it an forget about it.

Googling the problem just comes up with all sorts of unintelligible to me tecky stuff Im not going near.

I see on the forums this is huge problem no one seems to have easy answer for.

Why does Firefox not have a version without this vulnerability for the millions of standalone personal users. Regards Mike Milletr

I am running Firefox on Linux. Desktop environment is KDE. Compositor is Wayland. I have a 11th Gen Intel Tiger lake Core i3 with integrated Intel UHD Graphics GPU. I do not have a eGPU or any other GPU apart from the integrated Intel UHD Graphics GPU. Intel drivers are installed and are being used. Please see the details given below from about:support for more details. What I have observed that Hardware acceleration, specifically WEBRENDER_COMPOSITOR, WEBRENDER_SHADER_CACHE and WEBRENDER_DCOMP_PRESENT are disabled. The details are given below.

I have enabled the force hardware acceleration too by setting the property media.hardware-video-decoding.force-enabled to true. But still the above three hardware acceleration are still not available.

How can I get these enabled?

output from about:support GPU #1 Active Yes Description Mesa Intel(R) UHD Graphics (TGL GT2) Vendor ID 0x8086 Device ID 0x9a78 Driver Vendor mesa/iris Driver Version 25.1.3.0 RAM 0

Decision Log HW_COMPOSITING default available OPENGL_COMPOSITING default available WEBRENDER default available WEBRENDER_COMPOSITOR default disabled Disabled by default Blocklisted; failure code

                                                                                                                               FEATURE_FAILURE_DISABLED
                                                       env	        blocklisted	Blocklisted by gfxInfo	
                                                                                               Blocklisted; failure code 
                                                                                       FEATURE_FAILURE_WEBRENDER_COMPOSITOR_DISABLED

WEBRENDER_PARTIAL default available WEBRENDER_SHADER_CACHE default disabled Disabled by default Blocklisted; failure code

                                                                                                                       FEATURE_FAILURE_DISABLED

WEBRENDER_OPTIMIZED_SHADERS default available WEBRENDER_ANGLE default available

                                                       env	        unavailable	OS not supported	Blocklisted; failure code 
                                                                                               FEATURE_FAILURE_OS_NOT_SUPPORTED

WEBRENDER_DCOMP_PRESENT default available

                                                       user	disabled	        User disabled via pref	Blocklisted; failure code 
                                                                                                  FEATURE_FAILURE_DCOMP_PREF_DISABLED
                                                        env	unavailable	Requires GPU process	Blocklisted; failure code 
                                                                                                FEATURE_FAILURE_NO_GPU_PROCESS
                                                       runtime	unavailable	Requires ANGLE	Blocklisted; failure code 
                                                                                               FEATURE_FAILURE_DCOMP_NOT_ANGLE"

WEBRENDER_SCISSORED_CACHE_CLEARS default available

On certain websites , the audio and video still auto play even though the option, "AutoPlay" is blocked for both audio and video.

Please see the attached screenshot which shows that auto play is blocked, it is circled in red. While the video has auto played, circled in orange with a timestamp of 17 seconds being played prior to it being manually stopped.

Please fix this issue.

While I am able to log into my Google account in Chrome, I am unable to do so in Firefox after the latest update. Whenever I try, I am redirected to the attached support page, which asks me to delete cookies and cache contents. Deleting those does not help.

Please help!

Firefox added a new feature called 'tab group' that I love. Since I have many tabs, now I can group them in a 'tab group' and give it a name so I have fewer tabs and less clutter and can open a 'tab group' to display all its tabs. Kind of a file manager with folders and files but for browser and its tabs. The question is, how do I sync all tabs and tab groups in Firefox browser in all my devices so I can work seamlessly? One device is Windows 10 Pro,, another is Windows 11 Pro and the third is my iPhone with Firefox app. I would really appreciate some guidance.

Hello, FF 139.0.4 on MAC Sequoia15.5. Lost ALL references to bookmarks, i.e. Bookmarks Toolbar totally gone. How can/do I restore from .jsonlz4 file in bookmarkbackups. Also, will I be able to salvage my previous profile, presumably containing my older "Tabs on Bottom" work-around? Alternatively, is there a process to restore JUST Firefox from Time Machine? Appreciate any advice.

Up until recently, my default search engine was Google. I recently switched it to DuckDuckGo.

I regularly use Ctrl+k (hereinafter ctrlk) to popup the window to enter a URL to create a link in whatever web app I am using (Microsoft Office 365 apps, Reddit, Quora, etc.)

Suddenly, in when I used ctrlk to enter a URL for a title I highlighted in an email, the cursor bounced up to the Address Bar and selected it. I've tested it, and ctrlk works to open the URL window when I switch back to Google as my search engine--except when I am logged into my Mozilla account--ctrlk brings up the URL window.

Is there any way to turn off the ctrlk/Address Bar shortcut? As part of my job, I write job aids and emails that have lots of links embedded in them so, for me, this is an accessibility issue as it take fewer keystrokes to activate the URL window using the this shortcut, and just a single roll of my trackball to get from wherever I am on a page to the Address Bar the few times I may i need it while writing. (Between having nine functional fingers and severe arthritis in my hands, I am not exaggerating my use of the word "accessibility".)

Thanks for any assistance I can get on this!

MK

An 81 year old not as savvy as I was, very long time user of Firefox on mac and android phones. Just purchased new Samsung Galaxy A16 SM-A165F/DS. Two problems, 1. even setting Firefox as default browser in mac and phone it goes straight to Google and 2. Snapchat suddenly appeared on the phone every time I accessed Firefox and because I do not have an account without signing up I cannot get rid of Snapchat. Help please...

Hello Mozilla Community, Why do I only have to enter a password the first time I log in? Regardless of which browser (Firefox & EDGE) I use to log in the second time, after asking for my email address, I'm no longer asked for my password. I'm simply logged in. When I logged in for the first time and was asked if I wanted to save my password, I clicked no (and in Firefox, under Password, it's not). What do I/do I have to do so that I'm asked for my password every time? It's like this on Windows 10 and on my other computer with Windows 11 (both 64-bit and both up to date). And I use a translation program from German to English (I won't "say" that again in the future). Again, thank you in advance for your reply.

After my laptop BSOD, I had to re-install windows 11 while backing up all the previous settings and apps. I used "Free Download Manager(FDM)" as my default downloader of movies from websites that generated Magnet links. On clicking the magnet link the FDM is not opening by default, no action is seen. I've tried many options including the Support Centre of FDM from where I was advised to visit my browser support. I have used Firefox for 14 years, let me know where I'm wrong.

My tab groups just got lost. I didn't do anything to remove them. How can i restore them?

When this feature appeared, it was not available to me and I included it in about:config, but them disappeared when this feature reached me officially.