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Firefox on Windows 10 desk top suddenly stopped working with error message

XUL Runner Error. platform version 127.0.1 not compatible with Min version >= 127.0 Max version <=127.0

N.B. This is another machine - not this lap top

Please advise

Hello! Thunderbird has stopped downloading messages from my Yahoo+ account. I can send messages from it OK. When I try to get it to download, it says: Checking Inbox for new messages... and waits at this point. Then I get: Host Contacted, sending login information... Then it waits for a long time. Eventually, it indicates "No messages to download", and then goes back to "checking inbox for new messages". If I click "Get Messages", a pop-up comes up with: "Error with account... and below: The account fischer94563@yahoo.com is being processed. Please wait until processing is complete to get messages." I've deleted the APP and downloaded and installed a new copy. No changes. Deleted and reentered my password with Yahoo. I'm at a loss to understand why this is happening, but it was working fine until recently. Any thoughts? Thanks. Kevin

Not used Thunderbird for about a week as was away. On my return I am now getting duplicate downloads every-time I open Thunderbird on my desktop using Windows 10. I am on Thunderbird version 115.12.2. I have been using Thunderbird for a long time and this is the first time this happened.

I recreated the global-message-db.sqlite indexfile, turned off my anti-virus, compacted folders but nothing solved the problem.

However I did find a similar question on this site with a solution which wasn't exactly the same but lead me to investigate the Mail folder in my profile. I see I am getting duplicate pop.gmail.com folders (pop.gmail.com, pop.gmail-1.com, pop.gmail-2.com, etc.). I guess that is probably connected to the problem.

When I open Thunderbird I also get the message 'Connection to server pop.gmail.com was reset'.

Any help would be appreciated. I didn't want to delete any pop.gmail.com folders without expert advice.

Thank-you in advance.

I recently changed my google account/ gmail password. Since then I cannot send gmail via thunderbird. (I can send others hotmail etc) I can receive mail. I can send gmail via the gmail web browser. Sent gmail mail then shows in thunderbird.

I get the following message when sending email in thunderbird: Login to server smtp.googlemail.com with username sjagutpal@gmail.com failed. Enter new password I enter my new password. Fails again.

Sending of the message failed. Unable to authenticate to Outgoing server (SMTP) smtp.googlemail.com. Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'

note: IMAP server settings is OAuth2.

please help ?

Many Thanks...

Sanjay sjagutpal@gmail.com

I am using Windows 10 Home on an HP laptop. Some months ago, I began getting this error message when trying to start Thunderbird: Your Thunderbird profile cannot be loaded. It may be missing or inaccessible. I've been slogging along using my Gmail reader since then but I need my address books from TB for my business. I really need to get this fixed.

I've read all the questions/replies on this and have uninstalled and reinstalled TB. My Appdata/Roaming/TB file only has 5 files in it: Crash Reports, Pending Pings and Profiles plus a couple of 1 KB config files. Don't know if this is right or not.

When I search the Profiles folder using .ini, I get this Notepad info:

[Install8216C80C92C4E828] Default=C:\Users\*\Documents\yvfr1fi4.default Locked=1

[Profile3] Name=thunderbird IsRelative=1 Path=Profiles/kavosmqu.thunderbird

I have this yvfr file on a thumb drive and I tried uploading that into the roaming/TB file but I still get the same error message.

Any help greatly appreciated! Thank you.

For some months now I have been finding that, when I try to log on to the BBC website or the Youtube website using my default browser Firefox I get a timed out message. However, both websites usually open when I try for the second time. This never happened before. For both sites I log on from Windows 10 desktop icons. This defect is now annoying me so much I am inclined to switch to Chrome or Microsoft Edge as default browsers where the problems do not occur. I have tried a number of suggested solutions shown on line but nothing has worked to date. Before I switch default browser I will try further suggested solutions if anyone has any.

Formatted my phone but playing videos still lags and stutters on Firefox browser on my Samsung. Only happens on Firefox, I've tested on Qwant, Duckduckgo and Brave and this problem doesn't occur. What might be the problem and solution?

It's interesting that sometimes the video plays fine until I unmute it. Sometimes the problem goes away after I stop and play or refresh the page. I often have to play the video on a different browser.

So, videos work fine on other browsers so I discart being a phone problem. But on my other phone this problem doesn't happen with firefox.

I've been for several months looking for help/answer/fix for this issue. And I've been with firefox for ever and I don't mind minor bugs and problems but this is starting to be a bit annoying and more and more I feel like I need to move on to a new browser.

Phone: Samsung S21 Ultra SM-G998B/DS Firefox: 127.0.2 (Build #2016028743) Extentions intalled: ublock

When I put a video or an image gallery to full screen, the navigation buttons, clock, and status bar don't hide.

They often appear as though they're going to hide, for a split second, but frustratingly bounce right back into view.

On rare occasions, it seems to be random chance, the status bar, clock, and navigation buttons do hide, but I don't know how to get them to hide every time.

I've already tried disabling picture in picture for the app but that has not helped.

What are the reasons the buttons and clock would not hide in full screen? How would we go about fixing things?

A new problem since July 1, 2024 Thunderbird keeps crashing on start-up when checking for new mail. HELP!! Crash ID: bp-e8be7291-7fe9-41c0-bd21-45d860240702

alfieepstein@gmail.com

why does my hotmail in thunderbird sometimes get my emails and other times it says "Sending of password for user *********@hotmail.com did not succeed. Mail server pop-mail.outlook.com responded: Authentication failure: unknown user name or bad password"? Then it starts getting them again. It's totally random. Every once in a while it does it with my .live email too. Yet other .live and .hotmail addresses never have a problem? TIA

I'm having issues with videos loading on ANY webiste, YouTube ect.... This started happening very recently out of the blue. Videos work fine on Edge. Additionally, I cannot run Firefox in troubleshooting mode? It crashes. I tried "refreshing" and reinstalling Firefox to no avail. I am using AdAware AV and AVG anti viruses if it matters, I have tired disabling both and loading FIrefox, no changes.

YouTube all of a sudden started to slow down and only be able to load videos fast enough in 360p resolution, I tried watching YouTube on Microsoft edge and YouTube handled 1080p easily there, I have cleared the cash and made sure my Firefox and Windows are up to date and still the issue persists.

this only seams to occur on YouTube as amazon prime and speed test works without issues

Firefox is very dear to me. I use it on my computer all the time for how much more relatively secure it is from other browsers. But Android version is a hellish nightmare. When I open the app, even with no previous tabs on, it will not be responsive for more than 30-45 seconds for seemingly no reason. Same thing when I kill the app and start it again. If it does have open tabs, it will either not be able to fetch their sum number to be displayed on the top right corner until that aforementioned timespan passes, and/or I wont be able to remove/add tabs until again that period of time passes! This is a blocking issue that's been there for well over a year and a half, if not longer!

When I restart Mozilla Thunderbird, my S/MIME certificate preferences under Account Settings seem to break.

When I initially select a certificate, both the common name/certificate name and the certificate fingerprint appear in the interface (see Working Settings.png). However, after restarting Thunderbird, only the common name/certificate name appears in the interface, and I cannot use S/MIME to sign messages (see Broken Settings.png). When I attempt to do so, I receive the following error message:

Send Message Error Sending of the message failed. You specified that this message should be digitally signed, but the application either failed to find the signing certificate specified in your Mail & Newsgroup Account Settings, or the certificate has expired.

To be clear, Thunderbird has no problem finding and using the certificate right after I set it—the problem only appears when I restart Thunderbird and the appearance of the certificate in the settings changes. The certificate does not expire until April 2025, so this is not the issue. The issue also occurs with another account using a different certificate that is also unexpired.

I am using Thunderbird 115.12.2 (64-bit ESR) on MacOS with Apple Silicon.

Firefox keeps going off for from 5 seconds to about 20 seconds. It happens several times a minute. The screen goes blank and I can’t click on anything. Really aggravating. I would appreciate any help. Thanks

Hello, Since yesterday, the Firefox web browser crashes systematically. This has happened well over a dozen times. I've tried multiple step-by-step solutions: deactivating extensions, troubleshooting mode, repairing firefox, uninstalling and installing Firefox, trying several versions of Firefox (Quantum, ESR, Nightly), downgrading to an earlier version, uninstalling and completely cleaning Mozilla folders on AppData, deactivating graphics/hardware acceleration...

At one point, Firefox was crashing after ten seconds of watching a video on Youtube or another platform. After reinstallation, video playback no longer causes the browser to crash, but closing a tab does.

I am currently using Mozilla ESR 115.12.0. After reinstalling, I lost all the reports I sent. Nevertheless, I was able to reproduce the crash to give you the ID: [https://crash-stats.mozilla.org/repor.../a2d0f5de-d03f-450b-88f8-a8fdc0240705] Another crash report : [https://crash-stats.mozilla.org/repor.../71c602f6-c682-4158-9880-24d6a0240705]

According to the crash table, the reason for the crash is as follows: EXCEPTION_STACK_BUFFER_OVERRUN / FAST_FAIL_GUARD_ICALL_CHECK_FAILURE This reason appears on all crashes.

Thank you.

Hello, In my work email account (Zimbra instance), very regularly new emails keep reappearing as unread even after they are marked as read. If I restart Thunderbird, or if I go offline then online again the problem is solved; however, I would like a more definitive solution.

When the problem occurs, in the console I can see "The current operation on 'Inbox' did not succeed. The mail server for account X responded: mailbox selected READ-ONLY.". I tried solution suggest at https://support.mozilla.org/en-US/questions/1276757, i.e., setting `mail.server.default.send_client_info` to `false`, but it did not work. Any other suggestion?