Firefox Community Forum

Hello,

I recently updated my Firefox browser to the latest version, 138.0.1 (64-bit), on Windows.

After the update, I noticed that when playing videos in fullscreen mode (for example, on YouTube or other video websites), the Windows taskbar (the bar at the bottom of the screen with the Start menu icon) does not hide automatically. This is affecting my fullscreen viewing experience.

Before updating to version 138.0.1, the Windows taskbar would hide correctly when entering fullscreen video.

I was wondering if anyone else has encountered a similar issue with the Windows taskbar not hiding, or if there are any suggested solutions to help resolve this problem.

Thank you for your help!

In a few previous updates, FF keeps messing around with the New Tab layout, ruining its previous good look. I learned to revert it back to its former setting by disabling browser.newtabpage.activity-stream.newtabLayouts.variant-a and also browser.newtabpage.activity-stream.newtabLayouts.variant-b in about:config.

Now in Firefox 141, browser.newtabpage.activity-stream.newtabLayouts.variant-a has completely disappeared, no more allowing the poor user to get the look he wants.

Why? Am I missing something? What is the use of making the product worse or less user friendly?

I have a System 76 laptop running Ubuntu 14.04 LTS. The LTS (Long Term Support) ended years ago with Firefox 66. All of that works fine still. My problem is: 1. The world is telling me to upgrade my browser. 2. Mozilla tells me "Note: If you use your Linux distribution's packaged version of Firefox, you will need to wait for an updated package to be released to its package repository. This article only applies if you installed Firefox manually (without using your distribution's package manager)." 3. There will never be an updated package because LTS has ended. 4. IS THERE A WAY TO MANUALLY INSTALL A NEWER BROWSER LIKE FIREFOX 123?

Hello. I suspect there was a cyber attack on April 1 2024. All of a sudden,having problems crashing with more than 1 browser. My Brave browser would open,and then crash with multiple tabs that had been saved. My Mozilla history was cleared,and I want it back because I need to find all sites I have visited from time to time for logins etc,but they are now gone.I have tried importing all of my Brave history,login forms to Firefox,but not sure where to located them or where they would be stored.

Right now i am focused on getting a Firefox profile from before April 1

I have never had to deal with this sort of thing before so i am saying that i may be somewhat noobish on this.I just want some expert instruction on what to do here,and how to do it.I,m not 100 percent sure if i can do it correctly on my own by googling this myself,then attempting it.Brave continues to open then crash right after,so I dont know whats going on there with the userdata folder in the appdata folders with regard to Brave. Everytime i try to install an older version of Brave,it says i already have a curent version of it,and i dont want to uninstall brave then reinstall it again,or not sure if i should do this. ThankYou.

Hi there,

I'm new here so please bear with me if I've posted in the wrong place or have missed something obvious.

I running Windows 10, fully updated, on a laptop. I have been using Firefox browser now for many years, suits my needs and avoid's using Goolges Chrome. My Firefox was updated a in the last few days and it shows as up to date on Version 129.0.1 64bit.

I noticed late last night that when opening a fresh window and enter a search term in either the address bar or the Google search bar, my usual choice of search engine, I hit return and nothing happens. Any text I've input disappears totally. Not at all sure what's going on but have found that if I open a new private window Firefow will act as I'd expect without any issues.

I have two other browsers on my laptop, Edge and also Avast's own offering which both work as expected when I enter a search term. Have never experienced this before with the exception of years ago when malware protection wasn't great. It almost seems as though something is just stopping Firefox from searching anything I enter. I can use the bookmarks just fine and then everything works as usual.

Yesterday I thought that maybe following the new windows culmulative updates I was offered and apparently installed just fine, that I needed to restart which a tried and I thought it had cured the issue. Seems that it hasn't and still having the same issue.

Any idea's or thought's on what the cause of this is?

Hello, I am running Firefox on a W10-Pro PC. I always click the lock to check certificate validation. In the last month I keep seeing "Connection verified by a certificate issuer that is not recognized by Mozilla".

When I click for more information I see that "Norton Web/Mail Shield" does not recognize the certificate issuer. When I click on Learn More it takes me to a Firefox site "How to disable the Enterprise Roots preference" I also checked W10 certmgr.msc and I see Norton is listed. Images included below. I would love to resolve this issue. Thank you for your time.

I recently encountered an issue when attempting to login to The Coventry Building Society website using Firefox (desktop PC & Windows 10):- https://www.coventrybuildingsociety.co.uk/ It failed to display the page used to enter the one time passcode used for two factor authentication.

After looking on some forums I discovered this is because 'Strict' tracking protection was enabled. If I change to 'Custom' and uncheck 'Tracking Content' then things work as expected.

I also read on a forum that you can leave tracking protection set to 'Strict' but enter the URL for the problem website under 'Enhanced Tracking Protection -> Manage Exceptions'. I tried entering 'https://www.coventrybuildingsociety.co.uk/' Initially this appeared to work. However, when I tried it again the following day, the page failed to load as before. I had to change back from 'Strict' to 'Custom' and uncheck 'Tracking Content' once again. It's as if the exception URL is ignored in 'Strict' mode.

Am I doing something wrong or is this how it is supposed to work? Do I need to click on the shield icon (to the left of the padlock icon) and turn off 'Enhanced Tracking Protection' every time I visit the website?

Hi,

I'm having trouble connecting to a specific webpage on the internet.

The link is: https://www.canadiantire.ca/en.html All I get is a blank page.

It is a popular retail chain store in Canada. I know the website is up and running because I can connect to it using another PC at home.

How do I check what messages are sent from my FF browser to the website?

And then - what is received at my browser from the website?

BTW - I have cleared the cache and restarted FF - and still cannot connect to it. There are 3 other websites that I have trouble displaying and interacting properly. How do I know this? - Well - I tried the 3 other websites from other PCs within my home network and these websites work properly.

mjl

I just updated to the latest version of Firefox, and all of a sudden I have a new icon, Extensions, that looks like a puzzle piece, I cant seem to be able to remove it....at all.

I have a profile that causes odd behavior, within the profile, and to the OS.

Regarding the profile itself:

1. I use Multiple Tab Handler, which should allow me to move tabs on the tab bar with the mouse, but it does not (see image of proper behavior)

2. Normally, i can drag this padlock button to the desktop to create a shortcut. but now, it will not move/drag (see image 2)

3. I also have a backup profile from several months ago that has none of the above symptoms. However, If I substitute it's sessionstore.jsonlz4 file with the the one from the problematic profile, all the bad behavior mentioned above re-emerges.

I know this sounds strange, but, I also get external display issues when using the broken profile. These events are random, and manifest themselves differently, so I can't duplicate them. Essentially, these snips are examples of images from the taskbar tabs, or the clock area, suddenly superimposing themselves on the top portions of the taskbar toolbar area.

This is the view of my clock area (see next image 3)

In the following image, imagine that the portion on the left, that opens the start menu, is now hidden under what looks exactly like the clock area on the right, superimposed over it (see next image 4)

Those aberrations are removed by simply moving the mouse cursor over them, but they will continue to occur in any number of variations over any area of that top toolbar.

Is there a Session Manager that will save the session, to be later restored into that previous profile, but not also pass along the corruption?

Cut /copy and paste, nightmare!!!

what is going on? Cut / copy and paste should be easy, its not. Open a new tab, google homepage, and unable to paste the item I had just copied from another tab, it will only work when I go back to original and recopy? Too time consuming this issue.

Firefox repeatedly crashes on my, multiple times a day. I'dc really like to NOT have to change my default browser to Chrome.

What happens is that Firefox freezes, and I get a white bar at the top telling me so. I get a popup box asking if I want to close Firefox or wait for it to respond. Waiting doesn't work, so I always have to close Firefox. When I reopen it, fortunately all m,y open tabs are retained, but it crashes again within minutes or seconds as soon as I click on anything.

There only thing that seems to work is a reboot of my PC. But the respite is short before Firefox crashes again.

I've disabled most plugins, but that hasn't helped. Is there a way to create an event log within Firefox that I can share with someone at Mozilla to help e debug the issue? It's got to be something local rather than Firefox itself; I can't imagine this is happening to most users.

AvailablePageFile: 9994584064 AvailablePhysicalMemory: 6990008320 AvailableVirtualMemory: 138533823639552 BackgroundTaskMode: 0 BuildID: 20250616215311 CPUMicrocodeVersion: 0x64 CrashTime: 1750858075 HeadlessMode: 0 InstallTime: 1750788070 ModuleSignatureInfo: {"Mozilla Corporation":["firefox.exe","xul.dll","gkcodecs.dll","nss3.dll","mozglue.dll","lgpllibs.dll"],"Microsoft Windows Software Compatibility Publisher":["msvcp140.dll","VCRUNTIME140_1.dll","VCRUNTIME140.dll"],"Microsoft Windows":["MpDetours.dll","wsock32.dll","dbgcore.dll","ktmw32.dll","winmm.dll","version.dll","propsys.dll","DWrite.dll","uxtheme.dll","dbghelp.dll","windows.storage.dll","kernel.appcore.dll","ntmarta.dll","CRYPTBASE.dll","msasn1.dll","ntasn1.dll","ncrypt.dll","bcrypt.dll","ucrtbase.dll","crypt32.dll","msvcp_win.dll","win32u.dll","KERNELBASE.dll","gdi32full.dll","WinTypes.dll","bcryptPrimitives.dll","wintrust.dll","shell32.dll","shlwapi.dll","user32.dll","rpcrt4.dll","SHCore.dll","ole32.dll","psapi.dll","kernel32.dll","advapi32.dll","imm32.dll","oleaut32.dll","msvcrt.dll","gdi32.dll","ws2_32.dll","combase.dll","sechost.dll","ntdll.dll"]} ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox ReleaseChannel: release SafeMode: 0 SecondsSinceLastCrash: 820 StartupCrash: 1 StartupTime: 1750858075 SubmittedFrom: Client SystemMemoryUsePercentage: 79 Throttleable: 1 TotalPageFile: 65870069760 TotalPhysicalMemory: 34067255296 TotalVirtualMemory: 140737488224256 UptimeTS: 8.00534 Vendor: Mozilla Version: 140.0 This report also contains technical information about the state of the application when it crashed.

Hail:

System Software: Win11Ent_x64 v22H2 (b: 22621.2283) MFF v18.5.0.0

No matter what I try, my MFF keeps crashing at startup. For some reason, it tries to open 2 pages the windows at the same time, which is illogical. I deleted firstly my: sessionstore.jsonlz4 logins.json to no avail.

Then I tried to open MFF through elevated CMD with the command: C:\Program Files\Mozilla Firefox\firefox.exe -safe-mode Again, 2 windows pop crashing immediately.

I do not understand why all of the sudden, it tries to open 2 different instances at once. This makes no sense. I am out of ideas, having tried many an option found on Google, but which none give me a solution.

If anyone has an idea, I would be quite darn thankful. This MSEdge crap that I need to use now is not quite my thing.

Thank you. Ke'Ylan

I am currently on version 110 of firefox. It is driving me crazy how there is no physical object or deliminator between tabs. they all just blend in. Is there any way to add the "|" (pipe command) between the tabs so they have some sort of separation?

thanks

Hello. Recently I've noticed video quality has been reduced on amazon prime video. I get a message saying my hardware doesn't meet HDCP requirements.

I've already tried playing the same video on edge, and the quality selector was fine there, full HD video.

Thank you in advance

Hello, It used to work perfectly now Norton is blocking because at the bottom left of the page protect query.com pops up, don't know how to stop it, hope you can help, regards, Claudine

Hi all,

Apple has revised/updated their iCloud web portal. The backspace key no longer registers in the iCloud Calendar app on the web. This is specific to Firefox on Windows - I've tried other web browsers to access iCloud web portal and Chrome's backspace key registers so its not an Apple iCloud problem, just Firefox. Is there a setting or do I have to wait for an update?

Thanks in advance.

I had a Firefox update I believe last Friday 16th August. This resulted in a disastrous event whereby an error message displayed: error message 129. I finally managed to open a version of Firefox but I had lost all my bookmarks and open tabs. I also had to sign in to all existing websites which I had previously automatically had access to. The strange thing was that the version of Firefox that I had opened was from 2022 sometime because of the data that appeared. I am totally devastated by the loss of my bookmarks. :( What can you do to help?