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Hi, After using Thunderbird for years without problems, I ran into a serious one now (since a few days). When starting Thunderbird it comes up with three almost empty windows, one over the other. No data is filled in and when clicking on the window it says in the upper left corner: Starting page - Modzilla Thunderbird (no response) / (actually in German) Startseite - Modzilla Thunderbird (Keine Rückmeldung). The small login popup is also seen in the window but doesn't accept any typing and shows also 'Keine Rückmeldung / no response'. I can only stop the process on Windows level. I would be very grateful if you could help me with this issue. I cannot get to my emails anymore. Many thanks Holger

I'm using Samsung Galaxy S24 Ultra. Is there a way to prevent Samsung Internet from changing my default browser from Firefox? This problem has recently cropped up. Some apps may have a link to a website in their menu. Even though I set Firefox to be the default, if I select one of those links, up pops the welcome screen for Samsung Internet. The default setting is now Samsung Internet again. It's quite annoying. I've posted to the Samsung community but haven't had a reply that works. I've tried everything that an experienced Android user would know, but nothing has worked. Thanks for any assistance!

My laptop lost power mid-session and since then Firefox hangs after opening and becomes unresponsive. Can’t do anything on it. Troubleshoot mode does the same. Booted up my computer in safe mode, no change.

I’m guessing a reinstall would fix it but I had a bunch of tabs open that I’m really trying not to lose. And I didn’t have an account to save them, I’ll rectify that after this.

I have a 2019 Macbook Pro 16" and whenever I share a FireFox window on facetime, I'm unable to stop sharing it until I end the Facetime call. Even then, the sharing screen notification still appears in the top right in the menu bar and I'm unable to share my screen for future Facetime calls unless I restart my laptop (thus removing the problem). Is this a known issue, and is there a way to fix it other than restarting my laptop?

Video of issue Video of issue

Was trying to find a solution to new emails not showing but unread number increasing but no applicable articles were coming up. But after hours of trying solutions, I think the answer was to mark some older emails that were marked unread as read. Then the latest couple of days of emails started coming through. This happened when migrating Cox.net emails to Yahoo and then modifying Thunderbird account settings to retrieve them. This email account has over 14K emails from 2014 and later showing in Yahoo Inbox and somehow the Thunderbird Inbox is showing 26K, probably some duplicates, although I have been using the extension "Remove Duplicate Messages". In Yahoo, I made more folders for several older years and moved emails from the Yahoo main Inbox to those various years to cut the size of the Inbox. Any other suggestions would be great for similar situations.

Everytime i try to watch a video it says it can't play or it just sits there buffering. Youtube works but only lower quality, but every other site i go on doesn't. Twitch won't load, other sites show Error Code: 102630. This is only a problem on my browser on my windows pc I have. On mobile the browser works great and has no problem showing videos so it a problem for my pc browser.. I've tried all of the steps, i've updated, i checked drm and even went into config to check there. But nothing works, it still can't load videos. I have version 125.0.3 and for me it's the latest one. I even turned off all of my add-ons to check if it works or not but nothing there either. It worked before, just now the latest two months it hasn't. What can I do in order for the videos to load? Thank you for your time.

Hello everyone, I've been using Thunderbird with the Plugin FiltaQuilla as a tool to print attachments of incoming mails (this are alarm information for a fire brigade). Our dispatch center sends the mails out using PGP for encryption, the decryption works properly. Since FiltaQuilla cannot work on encrypted mails, I forward incoming mails to the same account which removes the encryption. The strange situation is: if the filter is executed automatically upon arrival of a new mail, it forwards the message, but does not attach the attachment. If I run the filter manually, it does as it is intended to. See the screenshot for details: the mail comes in at 5:53, the automatic forwarding arrives at 5:59 but without an attachment. My manual filter-test runs properly and includes the attachment at 8:22. I've updated Thunderbird only yesterday evening to V 115.10.1. Before the mayor update to 115, I had the feeling that this problem did not occur. Please let me know if and how I can provide more details such as logs. Best regards Andreas Schultz

Hi there,

I just started using my new MacBook Air, and when I try to use the trackpad to open read Gmail or click the calendar icon on Firefox, it doesn't respond. It works on Safari.

As per the photo, I try to click the calendar icon to open up my calendar and nothing happened.

I have been seeing these annoying colorful dots popping up on websites that ruin the otherwise excellent browsing experience. They sort of move around as I scroll. They aren't limited to specific websites and show up randomly.

When they strike, certain site elements disappear too - like the social sharing badges in the screenshots I've attached.

Thought it was a temporary problem that'd be fixed with an update but it's stuck around for months now.

Anyone else facing this problem?

Hi Friends.... This morning logged into my website as usual and this message appeared on the home page. I have not checked the link as it seems potentially malicious ... It does not appear when visiting my site on Safari. I have emptied the cache I have been through troupbleshooting mode I have reinstalled Firefox and it still is there..

How to rid myself of this

All help gratefully received Graham

Macbook pro 2017 OS 12.7 Firefox 125.03

Support needs to take their head out of the sand! With the latest release of Thunderbird for iOS it does not work when trying to type a message. The default is "preformat" and trying to change it to paragraph or other does not work. Older version works on my MacBook Pro (2011). My MacBook Air, Thunderbird writing message does not work. Glad I did not contribute money! Oh well must be a way to get folks to purchase Office 365, Outlook?

I've had this issue ever since switching to a new laptop. This issue is specifically within Firefox (I have tested this in other browsers and programs, and the issue isn't there. Everything else works perfectly fine!)

Essentially, whenever Firefox plays multiple sounds at the same time (for example, I use both youtube and discord in-browser) the second sound will briefly mute the other sound. (Going back to the discord-youtube example, if I am watching a youtube video and recieve a discord notification, the youtube video will pause for about half a second.) Or if a site has background audio but also plays a short audio clip when certain elements are clicked, for example, it will cause this "overlapping" issue. Again, this issue is only within Firefox.

I am using Windows 11 if that helps. I've already tried using a Firefox Refresh and peeking in about:config but I'm totally lost as to what I can try next, since I can't find any other examples of people with this issue online. Sometimes the issue briefly fixes itself but then reappears.

Firefox for Android.

Gmail comes in at a different time zone, but my clock is correct. How do I fix it?

I have location OFF on tablet and do not want it on. Can I fix this without turning on the ability to track my device?

Thank you.

Using Samsung S22 Ultra. Had probably 100+ tabs open, and as I was browsing a site, suddenly Firefox crashed, and on re-opening the app, all the tabs are gone, some dating back to months ago.

Unfortunately I wasn't aware of the tab saving add-ons until after the fact, but still, the fact that there's no "restore previous session" on mobile is extremely irritating, and history only goes so far. Why is this a thing? I can't believe this

Thunderbird will not start. Message Can't Load XPCOM. Windows 10. Have uninstalled and reinstalled Thunderbird multiple times. No change. Have deleted the Thunderbird folder in Program Files and reinstalled Thunderbird. No change.

I just upgraded to version 115.10.1 and I have since had numerous incidents where I could not move the cursor to add the next line etc. If I recall correctly this mostly happens after pasting text from a another email or other source. In fact there have been times when the entire composition becomes frozen. In this case it doesn't matter where you place your cursor, you will not be able to edit anything. Very serious problem and a major disappointment. I am always afraid to update at this point, and this is not right. The new releases need to be tried and tested.

I've been noticing apparent duplicate messages within my unified folders inbox on my desktop recently.

Looking further I notice that one of my accounts has 'INBOX' as one of its subfolders which is where the problem appears to stem from. When I look at that account in isolation (ie not in unified folders) I can still see the inbox as a subfolder.

The subfolder 'INBOX' appears to be a duplicate of the account's main inbox (it contains the same number of emails), which may account for the appearance of duplicates.

At a guess this is probably related to inadvertent moving of folders. I find that when trying to use the scroll bar (to scroll down the subfolder list), if the mouse strays slightly to the left it will pick up a subfolder and move it unintentionally. This can cause all sorts of problems with disappearing emails and the folder structures showing differently on different computers.

In this case the duplicate email problem only happens on my desktop. On my laptop I can still see a subfolder named 'INBOX' but it shows as empty and I don't see the duplicate emails in unified folders.

It would be really useful if Mozilla could introduce a 'confirm folder move' feature as that would eradicate inadvertent moves.

How do I resolve the apparent duplicate emails on my desktop? I am somewhat reticent to delete the subfolder 'INBOX' for fear of the potential consequences. . .

I need to set up several gmail accounts in Thunderbird. The accounts exist; I can see email by going to gmail's webmail for them. I'm running Thunderbird 115.10.1 on Windows 11.

I choose Tools > Account Settings > Add Mail Account then provide the name, email address, password, then TB validates the credentials with gmail's systems. I get a green light message saying that gmail found the entries. I then provide the appropriate POP3 server name and port address and the appropriate SMTP server name and port address and confirm security settings - all of which were verified and carefully edited when entered. TB then sends the information to google and after an very long delay returns a message saying the attempt failed, probably due to incorrect password or settings. All of the information and settings - including the password which was copied and pasted AND the same one used to log in to gmail webmail - are correct.

Obviously, I'm doing something wrong but don't know what. The error message is so generic as to be unhelpful.

Can anyone help me discover the problem?