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In trying to launch Thunderbird, I am now for the first time being asked for my primary Thunderbird password. I do not remember setting this up and I have no record of this. How do I reset this password so that I can open thunderbird? I have been using Thunderbird for several years now and have never previously been asked for a primary password.

Thunderbird has turned into a scam. Each time I try to download it for windows it takes me back to the donation page. I am on my third donation but it never trys to install.

One of my 2 Tbird accounts will download a new message but not display the contents. In the inbox list the message remains bolded, and clicking on it won't display the contents or unbold it. Any suggestions? Tkans, Alan

For some reason I have lost all old emails in my inbox. I am only getting new messages, but I have many Thats I leaving in my inbox to address later. Please help me to recover them. This hspppen on or about a March 4, 2026

Spectrum had me change my password for one of my accounts on Thunderbird. I changed it with Spectrum. That account was working fine from Nov. 6 until today, Nov. 16; today, it decided that my password wouldn't work. I tried to change it when it asked at the time I was trying to send an email; it wouldn't take. I then went into "saved passwords" and tried to change it; it wanted a pin. This is my** first problem;** Norton has no idea what that is. Thunderbird asked for other sign-in methods including a Yahoo email, but I have no idea what it wants as it doesn't want the password for that Yahoo account. What is it looking for????

I deleted the account from Thunderbird's password manager. After my shutting down and reopening Thunderbird a few times, it finally worked --however, it didn't ask for a password and sent and received email just fine. Thunderbird now doesn't have that account listed in its password manager, but is giving me my mail and sending my mail out without asking me for a password. **This is my second problem.**

Since this is all combined, I'm sending both questions together; otherwise, I wouldn't do so. Does anyone know what's happening and how to get a password back as a necessity for that email account?

Thunderbird used to easy and quick to use - now it is slow and cumbersome. For instance, to get it to send an email there is a delay now. It just seems to be freezing up. Lynn

When I send an email from my account dezandcathy@optusnet.com.au, I receive a message "Your message was sent but a copy was not placed in your sent folder (sent mail) due to network or file access errors. You can retry or save the message locally to local folders/sent mail-dezandcathy@optusnet.com.au" This problem has only occurred within the past week. For some of my sent emails, I have retried sending the message and it has appeared in my sent email folder, but not for all the emails I have retried. Checking with the recipients, they confirm receipt of my emails even though they are not shown in my sent email file. Can you suggest a solution? Thank you Derek Maule

Is there an easier way to block unwante senders than the extra effort to create a filter ? It seems there should be an easy way to "Choose or Apply a Block to a specific email sender by simply clicking on a "BLOCK" link to prevent that sender from sending unwanted emails(not just that email)

Thunderbird 145.0 (64 bit) with Windows 11 Pro.

In the message editor window, new message or reply or forward, when I want to insert a hyperlink using either CTRL+K or via the Insert menu, a popup window to insert the link into does not appear, and the write windows hangs. Becomes unresponsive. The only way to close it is by ending the task in Task Manager. I notice a crash helper in the Thunderbird group in Task Manager. Everything is on 0% CPU though.

What went on before this is that I modified the property editor.link_color in the config editor (because links are not readable in dark mode, but that's a different story). I then did reset it to default and restarted TB, then pc and TB, that did not help.

In troubleshooting mode, there is no problem. In normal mode, I deleted the only plugin I had (a theme) I cleared cache, refreshed Thunderbird, to no avail. It's not set up to generate crash reports yet.

I have TB on another machine (W10 Pro), I can copy my profile folder over quite easily.

Any suggestions please?

(I'm on Central European time, it may be a day or so before I respond to replies from the US.)

I would like to delete Thunderbird completely from my accout and then re-install fresh. However none of the answers I have found tell me where to start to delete it from my profile.

The online info is inaccurate as it pre-supposes a certain knowledge as to what is to be found where. I cannot follow that.

My Thunderbird inbox stopped accepting messages with a message 'Unable to write the email to the mailbox. Make sure the file system allows you write privileges, and you have enough disk space to copy the mailbox.' I 'repaired' the folder but all my junk messages suddenly reappeared in my inbox (a lot of them!). Tools didn;t work (wanted to re-apply junk filter). Went into safe mode - no difference. Now can't get any tools to work on the inbox folder. Not sure what to try next. Help much appreciated.

Hi

I have Thunderbird 145.0 installed and made the settings for my Outlook mail account as you can see in the screenshot. I do not want the client to automatically check for mail.

However, each time it starts, I can see the notification in the bottom left bar, it will check for mail on the noted server. Those messages are then downloaded, if present.

The options to do that are not ticked, nor the option to check.

Any ideas how to stop this please..?

Thanks

I have seen a thread about this, but the request remains unanswered. I am using iMap, for mail accounts in Thunderbird. Under Account Settings you can select folders to be downloaded, but they are only a preset few folders.

I wish to download the folders that I created on webmail. Thanks, Steve