Firefox Support Forum

Possibly there was an auto update of MOZILLA FIREFOX on our DELL LAPTOP (Windows 11). Now, we cannot get a Mozilla window to open - due to error message:

XUL Runner Error: Platform version '118.0.1' is not compatible with minVersion >= 118.0 maxVersion <=118.0

Can someone please help us get back to a previous version of Mozilla Fire. Perhaps it is a Windows error. I have no way of knowing. Please help me. My email is: [removed email from public] Thank you.

For the past few days, when I try to log on to PlayStation on Firefox, the sign-in page sits on a loading swirl after inputting email. There's a clear memory leak shown on Task Manager. The menu bar's right-click doesn't draw properly. FF can't be closed and needs to be terminated. The only extension I have is uBlock Origin disabled for this site.

This website works on Edge.

Attached is the broken menu from right-clicking the menu bar.

Hello,

Clicking to open Firefox gives me the following error message:

Error. Platform version '120.0.1' is not compatible with miniVersion >= 120.0 maxVersion <= 120.0

Can't open firefox! I'm running Windows 11 version 10.0.22631 Build 22631

Thanks! Julie

Up through Monday, 10-16-2023, I could play Amazon Prime Videos. As of Tuesday, 10-17, I no longer can. I can do this on other browsers, e.g. Chrome and Safari. Can this be fixed or do I need to stop using Firefox?

I have multiple monitors and most often have Firefox windows open on each. Lately, I've been noticing that the Desktop Window Manager process is consuming a huge amount of RAM. At the same time, consumption completely disappears with the closing of Firefox windows. Video: https://i.imgur.com/pHCa7Hh.mp4 (I left it for a while then closed Firefox windows) After a while, I noticed that already 13 GB of memory is being used by DWM. I don't know if sites affect behavior, but most often I have https://music.yandex.ru/home open

OS: Windows 11 (Microsoft Windows [Version 10.0.22621.1928]). Firefox: 115.0.1 (64-bit) Screen setup: 1 - 3840 x 2560 with 200% scale, 2 - 1920 x 1080 with 100% scale.

Hi, I use the apple iCloud calendar on Firefox. iCloud calendar has recently updated and now I can't use backspace when editing events in the calendar. It isn't a problem with other browsers such as Google Chrome. Other people have had similar issues, posted on an Apple forum.

https://discussions.apple.com/thread/255180069

I have the same issue that was reported here: https://support.mozilla.org/en-US/questions/1358340 and here: https://support.mozilla.org/en-US/questions/1409149

After a Firefox restart for a version upgrade, there are 8 windows listed in the Windows menu, but only 4 are visible. Trying to select one of the invisible windows from the window menu, or cycling through open windows with cmd-` displays nothing. I tried checking other desktops to see if the windows had landed there, but they're not. The missing windows don't show up in Mission Control.

I also tried exiting FIrefox, deleting the xulstore.json file, and restarting. This had no effect.

I'm on a 2021 M1 Max MacBook Pro Firefox 117.0.1 Mac OS 13.5.2 (22G91)

Any ideas? This is a weird one.

Thanks!

I've noticed this issue happening randomly, some of my toolbar bookmarks listed on the sidebar just up and disappear from view. As if they were never there. But I know they're still saved because when I click to Manage Bookmarks and check them there, they show up fine. The toolbar just randomly hides them for whatever reason, and I can only fix it by closing Firefox and opening it again.

I'm on the current version. I remember accessing about:support and clicking on Verify Integrity while trying troubleshoot some other issue, but don't know if that could've caused it though.

Our organization recently upgraded everyone from standard Firefox to Firefox ESR 115

Several users continually get the following error:

XUL Runner

"This profile was last used with a newer version of this application. Please create a new profile.

Users are getting the error even after a new profile has been created.

We have tried uninstalling Firefox both through the Control Panel and using IO Bit uninstaller but the issue persists.

All users are running Windows 10 22H2 64 Bit

Firefox just turns into a black screen and becomes unusable. It has been happening for a long time now and i have checked RAM and CPU usage and they are all fine, as I explored potential causes.

I will be using firefox and it just turns all black on all screens and is completely unusable. To use it again I have to force close all windows and reopen it and it works again.

This is a frequent issue that I have seen

I ran a loghttps://pastebin.com/jydVHHs0 of playing a youtube video mediaencoder? not sure if encoding issue or something else

The videos take a long time to play. I upgraded my system recently and was removing and reinstalling audio-related utilities with DNF.

right click menu copy not clickable,cant copy but when I hit ctrl + c and copy something first then i can copy within the right menu fine with the same site, and no this is not a site issue chromium works just fine.

Hi,

My Firefox keeps crashing every time I copy and past something from Excel and try to go to Firefox, it immediately goes gray and the only option that works is restarting it and waiting does nothing (which means I constantly relog back into to all of my accounts that I am using for job searches). It has been many weeks since this started happening and auto updates have not corrected anything. I've submitted the crash reports just now. Let me know what can fix this. Thanks!

https://forum.skylords.eu/uploads/stronghold_bombardment.mp4 This file can not be played with error message "Video can't be played because the file is corrupt.", and there is not even an option to download the file. Same file works fine in Chrome, Edge, VLC media player, ...

I've been attempting to use FIDO2 w/ PIN support to log into Okta. This occurs with a pre-registered security key (Yubikey 5C NFC on most recent firmware) that has a PIN already configured. This key works on all other browsers and devices without trouble. Firefox is unresponsive to Yubikey interaction after the notice "Touch your security key to continue with <company>.okta.com" and will eventually time out if I do not cancel.

On the other hand, I can register a new security key on Okta through Firefox on this device. When I go through the registration workflow, Firefox is responsive to all interactions, allowing me to enter my PIN and complete registration.

I have been able to replicate this issue on other computers and with a different user / security key.

Ever since the latest FF update each time I start/re-start FF I need to resignin to Dashlane. Honestly this hasn't happened in over 20 years. I haven't been able to find any similar reports. Has and/or can anyone explain why and hopefully provide an answer/work around? Thanks anyone/everyone.

I am using Firefox on windows 11 I am facing a issue of slowness in Firefox every website takes at least 10 seconds to show up the browser just loads the webpage for a long time before showing any content I thought it was a DNS issue but the same issue is not coming in any chromium browser. I have reinstalled my browser, installed different Firefox versions including (beta,nightly) but the issue still persists.

Please let me know what I can I do to resolve this.

Here is the profiler link

https://share.firefox.dev/3qMOAWO