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Just updated to the latest version 153. No drag and drop ... message shown is 'Unspecified Error'. I made no changes when updating to this latest release. Appreciate some guidence. Thanks

After updating to 153.0.1esr(aarch64). the SEND button has disappeared. There's no way to send an email. (I can receive emails.) I am a Mac mini M2 Pro. OS 26.4.1

I cannot find a link to download a previous release of Thuderbird, which was working fine until this update.

My Firefox browser shows the built-in icon (x VPN) in the upper right of the screen. If I click on the icon it starts the process that results in successfully logging into my mozilla account and the screen prints out the following: Next: Turn on VPN

One more step to boost your browser’s privacy. Go to the open panel and turn it on.

But the screen shows no open panel! If I click on the (x VPN) again, the process starts over.

I have checked Settings > Privacy & Security and made sure that the entry "Allow Firefox to improve features, performance, and stability between updates" is checked. I have made sure that browser.ipProtection.enabled is set to true; browser.ipProtection.everOpenedPanel is set to false; and I see no entry for browser.ipProtection.openedPanelWithLocation.

I have signed out completely from the Mozilla account, restarted the browser, and logged back in to restart the process using (x VPN) but it still doesn't work.

I just downloaded and put into mirror 'local folders' all my 100 and more folders from yahoo going back 25 years. excellent. I believe they are safe and solid as a rock now? Simple question is how to get all ongoing emails into those folders?

I did all that with an add on called importexporttoolsng which is great but does not live on and monitor new arrivals.

I've been advised to set up an archive folder and put everything in there and i will if i must, of course. but ideally maintaining the current folder structure that yahoo is moving messages into is the best way.

can it be done?

I started a monthly donation to Thunderbird a few hours ago and now I'm thinking it may have been a scam. Not sure, and I have sent an email to your donation email about this. Since I made that donation (and maybe this is a coincidence), I am not able to send any emails. I can compose an email, but there is no "send" button anymore. Can you help me with this? Thank you very much.

It seems it is because BUGZILLA uses the AMAZON'S service, but there is now a RANGE of IP addresses that have been blocked, and BUGZILLA have been caught up in this mess. Please let me know which board I can use to report/ask about this issue, if it is no on here..

Here is the issue research (NOTE: I have emailed the BMO_MODS email several times, but had NO RESPONSE, so want to check if others have this issue):

Based on the error message you're receiving, Microsoft is blocking emails from your IP address because it appears on their block list. This is a Microsoft-specific issue rather than an AWS problem. When you receive a 550 5.7.1 error with the S3150 code from Microsoft domains (Hotmail, Outlook), it means Microsoft's filtering systems have identified your IP address as a source of problematic traffic. Even though you're using a managed dedicated IP and haven't intentionally violated any policies, there are several reasons this could occur: The IP address may have a poor reputation due to previous usage by another customer, spam complaints from recipients, high bounce rates, or sending patterns that Microsoft's algorithms flag as suspicious. Sometimes legitimate senders get caught in these filters. To resolve this issue, you should:

• Contact Microsoft directly using the troubleshooting link provided in the error message (mail.live.com/mail/troubleshooting.aspx) to request delisting
• Review your email sending practices to ensure you're following best practices (proper authentication, low complaint rates, engaged recipient lists)
• Consider contacting AWS Support to discuss your dedicated IP's reputation and whether a new IP might be warranted
• Ensure your SPF, DKIM, and DMARC records are properly configured Microsoft maintains their own independent block lists and reputation systems, so even with AWS's managed infrastructure, you may need to work directly with Microsoft to resolve deliverability issues to their domains.

I'm asking this question so I can post some helpful information for people wanting to create a backup of their profile.

If you are using Windows OS and you got your download from the official website: https://www.thunderbird.net/en-US/thunderbird/all/

How do you locate the correct folder to backup? The backup must contain everything, profiles, mail accounts, emails, address books, calendar, preferences - the lot. The backup can be used to transfer between computers.

I cannot get into my Paypal account because Mozilla Firefox is asking me to set up a passkey. I press Continue and it tells me to enter a PIN. I don't have a PIN set up that I know of. If I try one, it is wrong and says I have tried too many times. When I go to the Settings where I should set something up with Window Hello, it says it is not available. I just want to log into my Paypal account like I used to. How can I bypass all this stuff?

I recently (unwisely) refreshed my WIndows 10. On restarting I had to reinstal Thunderbird. I thought I'd be able to recover all my old emails by importing the old profile from Windows.old, but I've had some problems: 1) I can't identify which profile was the most recent. 2) The info from each profile has remained on my Thunderbird, although I though it would be overwritten by the next profile I imported. 3) I've tried importing them one by one, but none of the old profiles is the one I was looking for, with all my sub folders. I need the old emails for work, invoicing and tax calculation purposes. I've now been sitting in front of my computer for a couple of days in a cold sweat, the desperation building quietly. Can anybody help?

Hi! We have automated tests that run in Firefox across a large number of instances. There are about a hundred nodes where the browser is launched. For security reasons, there is no Internet access. When the browser closes, requests are sent to 146.75.117.91. Since there is no Internet connection, the request fails to complete, and the process terminates due to a timeout. Because the browser is controlled by geckodriver, the `driver.close()` call fails with an error. I’ve tried numerous browser startup options, but none solve the problem; the process still crashes. The only thing that works is blocking the IP address at the firewall level or in the `hosts` file. However, I’m not happy with this solution because it would need to be applied to a hundred nodes, which would create scalability issues down the line. Are there perhaps any options I missed? I also found these addresses in `omni.ja`. Could it be that they are hardcoded and cannot be changed via options?

What I tried

1. телеметрия

options.set_preference('toolkit.telemetry.enabled', False)

options.set_preference('toolkit.telemetry.rejected', True)

options.set_preference('datareporting.healthreport.uploadEnabled', False)

options.set_preference('datareporting.policy.dataSubmissionEnabled', False)

options.set_preference('toolkit.telemetry.shutdownPingSender.enabled', False)

options.set_preference('toolkit.telemetry.shutdownPingSender.enabledFirstSession', False)

options.set_preference('toolkit.telemetry.firstShutdownPing.enabled', False)

options.set_preference("telemetry.fog.init_on_shutdown", False)

pac = """data:text/plain,function FindProxyForURL(url, host) {

   var blocked = [
       "incoming.telemetry.mozilla.org",
       "telemetry.mozilla.org",
       "normandy.cdn.mozilla.net",
       "firefox.settings.services.mozilla.com",
       "contile.services.mozilla.com",
       "push.services.mozilla.com",
       "aus5.mozilla.org",
       "versioncheck.addons.mozilla.org"
   ];
   for (var i = 0; i < blocked.length; i++) {
       if (dnsDomainIs(host, blocked[i]) || host == blocked[i]) {
           return "PROXY 127.0.0.1:1";
       }
   }
   return "DIRECT";

}"""

fp.set_preference('network.proxy.type', 2)

fp.set_preference('network.proxy.autoconfig_url', pac)

1. Направить телеметрию в несуществующий адрес

options.set_preference('toolkit.telemetry.server', )

options.set_preference('toolkit.telemetry.server_owner', 'localhost')

1. Или через proxy — завернуть весь трафик в несуществующий прокси
2. только для доменов телеметрии это сложно, но можно отключить все внешние запросы при shutdown

fp.set_preference('toolkit.telemetry.shutdownPingSender.backgroundtask.enabled', False)

1. fp.set_preference('toolkit.asyncshutdown.crash_timeout', 10000)

fp.set_preference('telemetry.fog.log.level', 'off')

fp.set_preference('telemetry.fog.artifact_build', False)

1. Отключить фоновые задачи при shutdown

fp.set_preference('browser.background.tasks.enabled', False)

fp.set_preference('browser.backgroundtasks.scheduled.task.timeout.sec', 0)

1. Заблокировать через hosts-like механизм Firefox

options.set_preference('network.dns.localDomains',

                 'incoming.telemetry.mozilla.org,telemetry.mozilla.org,normandy.cdn.mozilla.net')

options.set_preference('network.captive-portal-service.enabled', False)

options.set_preference('network.connectivity-service.enabled', False)

1. Отключить Mozilla Remote Settings

options.set_preference('services.settings.server', )

1. Glean telemetry (новая система Mozilla)

options.set_preference('telemetry.fog.artifact_build', False)

options.set_preference('telemetry.fog.test.localhost_port', -1)

options.set_preference('toolkit.telemetry.archive.enabled', False)

options.set_preference('toolkit.telemetry.bhrPing.enabled', False)

options.set_preference('toolkit.telemetry.newProfilePing.enabled', False)

options.set_preference('toolkit.telemetry.reportingPolicy.firstRun', False)

options.set_preference('toolkit.telemetry.unified', False)

options.set_preference('toolkit.telemetry.unifiedIsOptIn ', False)

options.set_preference('toolkit.telemetry.prompted ', 2)

options.set_preference('toolkit.telemetry.unifiedIsOptIn ', False)

options.set_preference('toolkit.telemetry.updatePing.enabled', False)

1. Отключить Glean полностью

options.set_preference('datareporting.glean.enabled', False)

options.set_preference('telemetry.fog.enabled', False)

I want to copy my windows Thunderbird profile to Linux but my Profile Directory will not open when I press open directory. I downloaded Thunderbird from the Zorin app store, and it may be a flatpak or something – it won’t tell me now because I have already installed it – but I believe that could be a reason for the directory not opening. Is there a non-PC-literate way of finding out and fixing this?

When going INCOGNITO, the verifying feature namely I'M NOT A ROBOT frequently pops up, which is not only TIME CONSUMING, but EXTREMELY IRRITATING!!! So irritating that at times I want to LEAVE FIREFOX and go back to GOOGLE CHROME!!! CAN YOU FIX THIS??? 😡😡😡😡

When I bookmark a website and select edit, it does not show my created bookmarks to save too, nor can I move existing bookmarks to created folders, why not? I have to create a folder, then select all my existing important bookmarks and save them to the created folder. I can not later add any saved bookmarks to the created folder, why not? The Beta version has the same issue. Please make a change to allow for bookmark saving or moving to created folders. Thank you.

TB suddenly moves messages from inbox to trash automatically without any interaction. Search through the forrum shows that it has been asked for already, see https://support.mozilla.org/en-US/questions/1588804, similar postings can also be found with you search engine.

As described in other postings, the messages are moved from Inbox to trash. When moving them back manually from trash to inbox, they are moved to trash again immediately.

• it happens for the default account only,
• there're no filters at all in TB,
• junk detection is disabled,
• Settings->General Storage is all disabled,
• (account)->Settings->Server Settings has checked "move deleted messages to trash",
• (account)->Settings->Storage is all disabled,
• Inbox->Properties "Repair folder" does not help,
• Inbox->Properties "rules is set to "use account settings" (and greyd out "do not delete messages"),
• exactly same behaviour when starting TB in save mode,
• manually deleting all *.msf files (for inbox) does not help,
• manually deleting xulstore.json does not help,

Additional notes, which are not related to the problem, IMHO:

• IMAP on port 993,
• no other clients anywhere are connected to that account,
• TB configured for more than 10 accounts, more than 500 folders and sub-folders,
• host with > 16GB RAM, TB uses 3GB virt,
• problem observerd in older TB also, at least 13x.x

I'd be happy to debug/trace the problem if someone can give me detailled insructions how to start TB with debugging. Please feel free to ask for about:config settings as they are non-ambiguous and language independent ;-)

Thanks.