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Can I use thunderbird with multiple accounts on multiple PC's and stay synchronised?

I have two PC's i want to set up - it seems like i have to create a new account for a second PC rather than pick up the account set up from the first PC.

Hi,

I'm looking to make Gmail my principal email account, instead of using my ISP account. Gmail requires 0Auth2 authentication, as many will know.

I'm a Luddite and prefer to use POP3, for a number of reasons. Thunderbird works fine (with POP3 Gmail), on my computer. Unfortunately, 0Auth2 doesn't appear as an authentication option, for POP3, in Tbird for Android. So the TB android app forces IMAP on my tablet and phone.

Is there any way around this? Are there any plans to incorporate 0Auth2 authentication for POP3 within Tbird for Android?

Thanks

Hello Community

Can anyone help me.

After using clean my Mac, I accidently deleted Firefox and important bookmarks. I have searching for the boikmarks folder in TimeMachine but cant find them. Any ideas please?

Best regards, Graham

Have not received email since 2/26, call BTEL my internet service and email, but I'm set up to received Thunderbird. BTEL changed my server name to; mail.[edited]@coastal-link.net, did not help, so we changed it back to ; Imap.[edited]@coastal-link.net..user name is [edited]@Coastal-link.net. Lost the emails I did have and after taking to them for days, they're saying it a Thunderbird problem. Incoming is ; Coastal-link.net Port 993, Outgoing is Port 465. Connection security SSL/TLS

I have never deleted so many emails at one time, around 500. Did I exceed the limits of Thunderbird? I cannot log on. Cannot see new emails. I have been on emailsrvr.com and did verify my passwords. Thank You

Firefox crashes whenever it would need access to my camera or microphone. So far it has only happened whn trying to access a Roll20 game with camera and microphone connectivity, and when trying to access a video appointment for Universal Credit. It never happened on Windows 10, but since updating to Windows 11 it happens every time without fail, and the crash is immediate.

FF 148.0, Intel Mac, current 15.7.4 (Sequoia)

In the middle of a browsing session I needed to consult my substantial browsing history and found it to be gone. I quit FF using the dropdown and restarted. After restarting FF the browsing history showed only that session and the TST sidebar with many tabs didn't display so I concluded FF created a new profile for startup but using my home page. I have the profile in use at the time (profile_a) and a month old backup of it. profile_a seems to have all the expected data and the bookmarks are correct. I've hacked around within Profile Groups and profiles.ini but FF refuses to use profile_a in spite of my edits, and worse is silent about it so I'm stuck and need help.

Possible related issue: is TST sensitive to the number of tabs? I'm a hoarder and find TST easier to use than bookmarks so had about 700 tabs stashed in TST.

I have used Thunderbird for many years and and have loved it. However, recently my "Local Folders Inbox" have been extremely slow (deleting emails, reviewing an email, etc.). I have tried every suggestion that I have found without any change: reducing emails in the folder (down to about 75 remaining), compacting and repairing the folder, deleting and rebuilding all of the msf files and global database, disabling all addons, empty trash and junk, clear the cache, disable hardware acceleration, exclusion in antivirus, etc. It has become very frustrating. Any suggestions would be greatly appreciated.

I routinely drag and drop attachments out of an incoming email and into various desktop folders. However, in the last couple of days, it started creating multiple copies when dragging more than one attachment at a time AND doing it in multiples of the number of attachments. For example, if I drag four attachments over, it will save the original attachment and create three more and number them: ex. File.pdf (original) and File-1.pdf, File-2.pdf, File-3.pdf. Three file equals two copies, six files equals five copies, and so on. Dragging one attachment is fine and saving multiples via SAVE ALL works fine as well. It's only multiples via drag and drop. I am running the latest Thunderbird 148.0 on a Mac with Tahoe 26.3.

UPDATE: efforts to fix this have revealed that it's likely the release of Profiles didn't cause this problem although I speculate there might have been an inadvertent time bomb in the release. I will open a different question searching doesn't turn up the fix. If I would delete this post if possible.

FF 148.0 was running on MacOS with my profile as a folder (e.g, trb618r9.default) under Firefox. When I looked in history it was empty so I restarted FF, none of my tabs were there, and TreeStyleTabs didn't display. Investigating I see a new folder named Profiles that has a profile in it with the trb618r9.default name but not all the data in the original trb618r9.default. I renamed the "new trb618r9.default" and moved the original trb618r9.default to Profiles and restarted FF but still am not seeing the original fxxx data which still exists.

Screenshot of finder before I renamed etc. as described above shows the two same named profiles.

How can I recover?

There is a way to add a folder to a Thunderbird account that combines other folders. The one I want to create would be "Inbox and Sent emails combined". I did it in the past, but I can't remember how to do it anymore. Can someone help with this? I am running Thunderbird 140.8.0esr (64-bit) on Linux Mint.

All of the sudden can't use Hotmail through Firefox I have tried clearing cache, making sure clocks are correct etc.

This is the error page that I get. How can I fix?

UTC Date: 2026-03-03T14:58:14.746Z Client Id: C04E3F29FD7245519575F2719944C1F7 Session Id: e5d1dce8-796f-466c-a0b0-e06785904ba1 Client Version: 20260220002.06 BootResult: fail Back Filled Errors: None err: TypeError: TrustedTypePolicyFactory.createPolicy: Tried to create a second default policy esrc: Script et: ClientError estack: 734392@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.AppBoot.m.7ffe5f65.js:39:147215 I@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mail.runtime.1902e968.js:1:145 282916@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.AppBoot.m.7ffe5f65.js:21:21492 I@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mail.runtime.1902e968.js:1:145 691114@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.AppBoot.m.7ffe5f65.js:39:61327 I@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mail.runtime.1902e968.js:1:145 835041@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.AppBoot.m.7ffe5f65.js:42:50184 I@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mail.runtime.1902e968.js:1:145 950733@https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.AppBoot.m.7ffe5f65.js:42:220063 I@https://res.public.onecdn.static.microsof

Hello people,

When I compose a message in my word programme (Softmaker or Libre), save it in Docx format and copy/paste it into Thunderbird to send it everything is double spaced and nothing I do in the "compose" menu can change that.

I have tried it with "Use Paragraph Format" checked and unchecked and it stays doule spaced and nothing I can find in previous threads seems to address this problem.

What am I missing?

Kindest regards, Colin B 1 October 2025

Why is the Bible.com picture blurred on my home screen but non of the other websites are? This is not very inclusive.

I never had this problem and only been experiencing it recently.

After turning my computer off, turning back on and loading up Thunerbird, my calendars are not displaying again. I have to keep removing and readding again.

I am using Google Calendar that is linked to my phone and pc. The phone is fine and always displayings my appointments. I am using the "Provider for Google Calendar" extension on Thunderbird.

I at first though it could be OneDrive interfering with the data, but that does not make much sense as its a calendar hosted on Google, but still I configured and checked the OneDrive.

I am at a loss and getting fed up of having to readd my calendars back every day. So, I don't know if this was an update that did it, a broken extension, etc. But, I am desperate for a solution.

Regards

TB on Windows

Prior to TB 148, OAUTH worked for POP3 access to: Gmail, MS Outlook, and Yahoo.

After TB 148 upgrade: OAUTH to Yahoo fails, subsequent log-in page also fails. Both OAUTH to Gmail and OAUTH to MS Outlook still work fine.

Rolled-back/Reverted to TB 147.0.2 -- OAUTH to all works fine, as it did previously.

Note: YahooMail seems to have other problems. But I was able to confirm successful OAUTH and POP3 to YahooMail after reversion to 147.0.2.

As stated above, received msg from me to me -- a common practice I hear. If I change my password, will that fix this? I tried to log in to Outlook on line to change password but I use a passkey - doesn't let me do a password entry. Help..... Thanks.