Firefox Support Forum

I normally have multiple FF windows open on multiple desktops. After a restart all of a sudden every time I create a new desktop, FF duplicates browser. If I open a new FF Window it will automatically appear across all open desktops.

Tried pretty much everything: Multiple restarts Cleared Cache Refresh Firefox General Settings changes

FF 119.01 Monterey 12.6.6

Any thoughts appreciated

I have been receiving the following error code 'PR_END_OF_FILE_ERROR' on several website on my Firefox browser. Sometime, not all the time, I get the same error message while trying to use YouTube, while other times the site loads but says that I am offline and no internet connection. I have done all of the fixes that they say to use online and nothing seems to work. YouTube will occasionally work but none of the thumbnails will show up. Then there are other site that work fine.

Hello, I cannot get videos to go into full screen in FF as they used to before latest update. Tested on various sites. There are no controls shown on YouTube unless i either hide the taskbar or scroll down both of which is a nuisance. On some sites the task bar stays at the bottom which it didn't used to do. link text

Hello,

we have a BigBlueButton Server setup for our company. Until recently we used a TURN-Server to tunnel the UDP connections thrugh the firewall.

Due to performance issues we wanted to try and let the clients connect directly to the udp ports 16000 - 32000

In Chrome this works as expected.

In Firefox however when we set "media.peerconnection.turn.disable" to "true" FF does not find any WebRTC candidates. We checked the logs and it says there:

"relay only option is set without any TURN server configured" "relay/proxy only option results in ICE TCP being disabled"

But thats NOT true! The option "media.peerconnection.ice.relay_only" is definetly set to "false"

Tested on FF 115.5.0 ESR and 120.0.1

Does anyone have an idea whats happening here? Why doesnt FF even try to make a direct connection?

UPDATE: I just ran a test on our dev system. If we configure BBB so that it does not offer any TURN-servers, FF uses a direct connection. Sadly that is not possible, since we need the TURN server for external connections. When there are TURN-Candidates but TURN is disabled via FF config no connection is established at all. This definetly semms like a bug in FF, since the browser should still be able to simply try and connect directly.

Thank you for you support

Dear Community,

Been having a problem with downloading for about 2 weeks now.

I am doing a course in Ethical Hacking, and have been told to download an .ova file from the internet. The download is 8.5 GB.

However, it has failed on, now, 8 occasions. The nearest it has come, is it has downloaded 5.1 GB.

Could anybody recommend another tool to download files better and quicker? This course is now almost halfway through and I still have not managed to download the software. Any suggestions would be most welcome. Could it possibly be the case that my anti-virus, Microsoft Defender, is not letting the download through? If so, how could I switch the anti-virus off, please?

Marek

On the Facebook desktop, the Firefox push notifications keep switching to off. I cannot see these notifications as a result, as you can see from the image where the information is blank. I have tried everything possible to fix this issue, but it remains. Any help in fixing this issue would be appreciated.

Dear Sir/Madam:

I am using Firefox Browser 102.15.1esr (64-bit) on a MacBook Pro Ventura 13.5.2.

I have been using the www.dictionary.com website for a long time, but recently when I attempt to go there, I keep getting the error message as follows:

Unexpected Application Error! FM.findLast is not a function

WM@https://www.dictionary.com/client.e12a2de6.js:36:305976 $o@https://www.dictionary.com/client.e12a2de6.js:1:26519 ka@https://www.dictionary.com/vendor.60d89d9a.js:1:864941 xu@https://www.dictionary.com/vendor.60d89d9a.js:1:921923 bc@https://www.dictionary.com/vendor.60d89d9a.js:1:910907 yc@https://www.dictionary.com/vendor.60d89d9a.js:1:910835 vc@https://www.dictionary.com/vendor.60d89d9a.js:1:910696 ic@https://www.dictionary.com/vendor.60d89d9a.js:1:907503 oc@https://www.dictionary.com/vendor.60d89d9a.js:1:906055 E@https://www.dictionary.com/vendor.60d89d9a.js:1:996565 P@https://www.dictionary.com/vendor.60d89d9a.js:1:997096

I tried clearing caches under Privacy & Security, but the problem persists.

(Meanwhile, I can visit www.dictionary.com on Safari and Google Chrome.)

Could you please let me know what is going on?

Thank you,

Roland

Within the last week or so, a certain website (libsyn.com) that serves Podcast audio has been doing something strange to their content that causes Firefox difficulty when playing back in-browser. If I try to jog/skip through the audio, certain portions will cause the time to continue advancing, but Firefox will not play any audio back. Here's a sample. Note that if you allow the full URL to be loaded, then load the stream into VLC, VLC is able to play the audio just fine without any issues.

Possibly similar questions:

• https://support.mozilla.org/en-US/questions/1378321

Related bug report:

• https://bugzilla.mozilla.org/show_bug.cgi?id=1496567

Hello,

I've read and tried the fixes to open the newly updated (deleted and installed 3 times) Mozilla Firefox and nothing is working. I've pressed down alt to open in safe mode and I am unable to get it to open. I've looked for the Facebook plugin to disable it (saw a comment on that) and the plugin folder is empty. Is there a help desk with an actual person that can figure this out?? It is quite alarming to see so many other people with this problem and no real help from Mozilla employees themselves. HELP!!

My regular profile has deleted all saved history, tabs, bookmarks, etc. This happened before and seems related to having private browings open. and to an update in progress or recent.

Opend a private window. Then noticed regular FF wasn't opened. I opened the usual profile and all saved info is gone. Also, my stuff to be synced is way out of date so can't restore from there (I always had sync up to date). My "backup" can't be opened to restore.

Where do I find yesrterday's info? How do I restore my session, bookmarks, etc?

Last time, I tried to follow directions I found soemwhere but the instruction werent clear at all and had to restore from a disk image.

Why is there stsill the private window deleting regular window?

Downloading each page of a subscribed newspaper takes about 30 seconds. How do I eliminate the slow response? By the way, I deleted Firefox and reinstalled it. That fixed the problem only temporarily.

Thank you, Mike

I remember having: Panaroma, 2 tab organization and several YouTube addons to enhance my experience like Adblock, unhook, dislike return. And with several tabs as checkpoints for my search but I couldn't separate them and also it lagged a lot when having unloaded tabs. LibreWolf provides a better service maybe you could understand the frustration that Firefox had on me. There's no section for videos.

Dear Mozilla

I'm participating in a discussion group based on Wordpress (learning.martinus.dk), and when I try to sign in (learning.martinus.dk/wp-login.php), I get the error.

>> 406 Security Incident Detected Your request was blocked. The public IP address assigned to you, by your internet provider, might be suffering from poor reputation: Look up IP reputation here. <<

My IP adr. is 80.208.65.123 and it is NOT suffering from poor reputation -- and no problem when I sign in from e.g. Chrome!

So what can I do so I can use my favorite browser here too!?  ;o)

All the best, Henrik Denmark

I often drag elements on trello.com. Whenever I drag an element, that element seems to double in size, making it hard to see what is underneath. Attached is an example.

I believe this is related to the fact that I am running Linux/X11 and my DPR is 2. From about:support:

• Window Device Pixel Ratios 2,2,2,2
• Window Protocol x11
• OS Linux 6.1.0-13-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.55-1 (2023-09-29)

Is there an about:config setting or anything that will prevent scaling dragged elements?

This problem just started recently, where I can't unmount an external USB drive without getting this error message:

The disk "Projects" couldn't be ejected because "Firefox" is using it.

I hate to keep quitting FF just to unmount a USB drive - that means logging in again to various web accounts.

My only extensions running right now are Enhancer for YouTube, Grammarly, and Facebook Container.

What's preventing me from unmounting a USB drive?

Thanks!

The problem comes up for two days after Windows crashes with a blue screen. After POR Windows recovers itself and now works, but FireFox and Thunderbird chrashes immediately after start. Do you have an idea, what can I do? FireFox crash ID: bp-c4fe47cd-45dc-4024-8cc1-4a2220231204

Thx, Flo

Firefox seems to get stuck loading pages on the CSO Ireland website For example https://data.cso.ie/table/NIA13

It can be right intermittently but reoccurs again rapidly at random. Other browsers do not seem to have this issue.

Greetings from Greece,

i use Mozilla Fieefox many years now to sync everything from home, to mobile and work. Today at work, I received a new computer with fresh Windows 11 installation, bind to an MS Domain and the latest version of Firefox installed.

With a great dissapointment i realised that i couldn't connect with my mozilla account while in the previous pc with with windows 10, worked and synced flawlesly. While pressing "Sign In" from the 3-line menu on the top right corner nothing happens, sometimes it opens a window that keeps loading and some times the login page is loaded. After inserting the email and pressing the button it takes quite some time, a red ribbon notification appears "Proccessing..." and when next screen appears and the password is entered... (it takes also quite some time) the red ribbon notification appears "Working..." and after a little while "The operation was aborted".

I've uninstalled and reinstalled firefox, cleared profiles and created new ones, took advantage of all refresh tools mozilla offers.... nothing. In fact in all 3 pc's we received today the reaction was identical. On the other hand if i try to login to mozilla throught Chrome or Edge the login process works like a charm.

Any thoughts, ideas would be very much appreciated.. could it be a Policy Problem for Windows 11 for example?!?

Thanks in advance for your time