All Products Community Forum

Hi. According to my observations, only Mozilla Firefox and Adobe Reader have this problem so far.

Windows 11 + Multi-Monitoring Windows 10 have this Bug not !

Open Firefox, drag the window to the second or third monitor, and suddenly there is another hidden Firefox window on the taskbar of that display. If you move Firefox back to the main monitor, it disappears again. Or you can close Firefox and restart it on the desired monitor.

This is an annoying little bug, and I don't understand why Microsoft or Mozilla haven't fixed it yet. It's easy to reproduce and has obviously been around for a while. Since it only affects the two programs mentioned above so far, an MS update will probably not fix it; instead, the developers at Mozilla and Adobe need to address it.

Here the Same Topic in Adobe Forum. No bug fix to date

https://community.adobe.com/t5/acrobat-discussions/taskbar-phantom-window-when-using-multiple-monitors/td-p/14390169

I hope you release a bug fix soon... but since that hasn't happened yet, I'm afraid it will take a while... I'm surprised, because I'm sure many people are experiencing this annoying problem, and in my opinion it's not a big challenge for your developers.

@Mozilla Please Fix this Bug. I know Windows 11 is not better than Windows 10 but Supports End and many Users and Customers used in Future this OS and if you don't want to lose any more market share, it's important to fix this minor bug for ordinary users too. Thanks ;-)

I've been having an issue with picture-in-picture (PiP) mode where the subtitles and rewind/fast-forward buttons (rr/ff) won't follow the video into the small player for Disney+ specifically. I have no issues with YouTube or any other site. The subtitles and rr/ff just stay with the original video player on the site while the video is in PiP mode. I can see the subtitle button on the PiP player, but it is grayed out and I can't click it. I've updated both Firefox and my computer (Windows 11) and reinstalled Firefox, cleared cookies and cache, and still no dice. Any advice? Thanks!

(In the screenshot, the PiP player isn't showing video, but I think that's just because of Disney's anti-piracy software - I can see the video in the PiP player on my screen.)

Since the recent update to Firefox 131, I can no longer use the Billpay option of my TD Bank account. I am able to log into my account without any problems and use all of the options except for Billpay. I want to add that I know I am not alone with this problem as I have seen several others with the same problem but with different banks. It is the Billpay option which no longer works.

As I said, the bank site is fine until I click on "Billpay", Then I get this: begin quote: "Why can't I access Bill Pay?

You might have cookies blocked or cross-site tracking prevented. Depending on what browser you're using, check your settings for these terms:

   Block third party cookies
   Cookie tracking
   Cross-site tracking

Make sure cookies are not blocked and cross-site tracking is enabled. Follow any additional instructions in your browser once you have adjusted these settings.

Copyright © 2024, TD Bank, N. A.. All rights reserved." end quote.

I have disabled uBlock Origin, Enhanced Tracking, tried Private Mode, Troubleshooting Mode to no avail.

I have also cleared cookies & data. This appears specific to v131. Any suggestions??

On websites, thumbnails will not display but appear instead as white boxes with small blue question marks. I am using a two year old ipad and my internet speed is 180.

This is a new bug, as of today.

If I click on each thumbnail the image displays just fine, but that is not ideal.

On a reddit forum, someone suggested typing about:config into the search bar but nothing happens when I do that.

Any ideas?

Thunderbird is not synchronizing with Mailfence. My other email accounts (Outlook, Gmail) work fine. TB connects to them, downloads message headers and displays the number of messages correctly. With Mailfence, the messages stop at "connected to imap.mailfence.com" and stalls there. The message disappears after a few seconds and nothing else happens. This happened this morning when I first launched TB. I then got an update to 128.11.1. No change. I did receive the Windows Update 2025-06 Cumulative Update sometime overnight prior to launching TB.

I did some googling first and it seems to be an on and off issue mozilla has had with years. Anyway, whenever I play a video (be it youtube, twitter, instagram, even gifs on twitter actually) the video will often mess up and become a chaotic jumbled garbled up mess of green with junk artifacts over the video. The audio will play fine. It's like watching a scrambled TV station from a 90s bootleg cablebox, but green.

This issue doesn't exist in any of my other browsers.

I'd love to continue supporting Firefox instead of Chrome, but this is a persistent issue across the entire internet, so it's kinda obvious I need to stop using Firefox until this is patched. Thanks.

I keep getting a pop up when opening my mail that reads, "The folder on inbox (then gives my email address) could not be compacted because writing to folder failed. Verify that you have enough disk space and that you have write privileges to the file system and then try again".

I don't understand!!!

I have sound in Windows, but YouTube is dead quit. I have tried all that is suggested in Firefox help and some YouTube sites. Nothing worked. I have tried off the computer and restarted, but no change. My system is Windows 11, sound works, and the latest Firefox update installed. Question is this a YouTube tacit to stop NoScript and uBlock?

"The bookmarks and history system will not be functional because one of Firefox's files is in use by another application. Some security software can caused this problem".

How do I resolve this problem?

Several times a day, TB pops up a message box with the following...

The folder 'Inbox on email@domain.com could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again.

I have a few accounts in TB, and it does this for all of them, but at seemingly random times.

Everything seems to work, it's just annoying to have these messages pop up.

I have 0.9Tb free space on the disk, so I don't think it's a lack of space! I also have admin rights to the file system, so that's not it either.

Anyone any idea why I get this? Thanks

When scrolling on iOS, websites are jumping up and down whenever address bar appears. On some websites it isn’t a big issue (cnn.com), on some it is really annoying (Audi.pl). It makes it really hard to browse. See the video:

https://youtube.com/shorts/jtS5kcnHP0g?si=3cI7aYHsk8XzKCxm

Just a few days ago, screenshot technique failed. I often copy an image from webpage. Right click technique. I am still able to do this. I have option of copy or Download. Download works but Copy does not. When I try to paste the copy into my Word document, I get a blank image (a square that indicates there was an image but the actual image is not there). How can I get the paste mechanism working again?

Firefox told me to update Firefox. I had to get help from Apple support to do so. Now the new version takes forever to load anything. I can't read comments from other people on my Facebook posts. Amazon takes forever to show the products that I am looking for. I saved both versions of Firefox when I updated, so how do I find the previous version to use? It was much better on my computer.

All of a sudden my Firefox app is crashing. It will show the home screen fine but other than that, it crashes. It worked only an hour ago! I even deleted it and then redownloaded it via the App Store. It still crashes!

How can this be fixed? Or must I leave Firefox for good?

I'm unsure if this is a Firefox Mobile issue (since the site's login pop-up works just fine on my laptop that I also use FF on), or an issue with the website itself, but I've already emailed the site about it and got no response yet. So, figured I'd try here. Also, I just tried re-enabling Chrome to truly see if this is browser or app related and sadly this works on Chrome's Mobile but not FF's.

On the mobile and desktop version of this site: thingstogetme.com

There's an option to login with Facebook or Apple ID. The Apple ID pop-up works fine, but the Facebook one does not. Again, this is only an issue on Mobile. The Facebook option will turn a darker blue once you tap on it, indicating it's been selected, but nothing will happen. If you tap the page, it'll go back to its regular, un-selected blue.

I've turned off uBlock Origin, switched between mobile and desktop pages, refreshed, nothing works for this problem. Thus this essentially soft-locks me out of this site unless I use my laptop.

Firefox beta usually works OK but random webpages either take ages to load or even hang indefinitely. Most of the responses I've seen on this subject simply ask for more info re websites, extensions etc but other browsers don't have these problems, so it looks like a core Firefox thing.

I've loved Firefox for years but can no longer use it because I have been unable to resolve this issue. All was well, an update was done, and bingo, I got this message. I don't know how to fix it. I removed Firefox from my desktop and re-installed. Same problem.

"The bookmarks and history system will not be functional because one of Firefox's files is in use by another application. Some security software can cause this problem."