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Every time I start TB on Windows 10, I am seeing "Compact folders". The prompt is offering to save around 310MB, but no matter how many times I select COMPACT NOW, I still get the prompt next time.

I have tried:

 - compact all folders in all accounts
 - Repair Folders in all accounts, all folders (which took a while! I have 10 email accounts)
 - deleting global-messages-db.sqlite

Any ideas on how to resolve this would be appreciated. Email is still working fine, I am just trying to get rid of the never ending prompt.

TB version 147.0 (yes, I know, I know. But I have made it look exactly how I want, so I avoid regular updates unless absolutely necessary.) Thanks.

I've been using Thunderbird on Windows 10 since last year sometime. Currently I'm on version 151.0.1.

I've 4 x mailboxes here and since yesterday, 3 of them show me an unusual message when checking for emails. I tried attaching a screenshot but although the screenshot uploaded, I couldn't find a way to insert it here. But the message says Unable to write the email to the mailbox and asks me to check if I've write privileges (which I have) and to cheek the available disk space.(currently 101GB free).

The message is happening 2 or 3 times each day and lasts for about half an hour, then everything works fine again. Has anyone else seen this??

We can access our Orange accounts directly (www.orange.fr) and deal with our emails using passwords stored by Password Manager. We can not sign in to Orange through Thunderbird. The passwords saved by Password Manager are not recognised. Orange have introduced a system that produces a 23 character Password which is then entered into the password field in Account Settings: this is supposed to be permanent and unique to the account. When I followed this procedure I got the error message 'Incoming server already exists', for both IMAP and POP3. We are on Windows 10 and Opera; Can you help please?

I've been using Thunderbird version 155.0 with only a few issues (reported in other posts).

To investigate one of the issues I've had to create a new profile for testing. I've managed to set everything up except for my default font for outgoing emails. If I send an email with say, four lines of text, I can format each line to be a different font and the received email reflects the different fonts for each line.

But Thunderbird isn't remembering the last selected font. So if I send a second email (without re-selecting any font) the recipient receives it in some naff mono-spaced font. I guess there's somewhere where I can set up the default font for my outgoing emails but I haven't managed to find it yet. Can anyone help?

The edit tool bar to set bold, text color and text sze under the "+ new message" is missing. How do I fix?

Question from Jack Anema. , EMail [redacted email from public]

When I used to click on Minimize, it would minimize to the system area down by the clock. Now it minimizes to the taskbar, something that it's never done before. When I clicked the X, it would close out the program completely. Now it minimizes the program down to the system area. Is this a bug, or is this the way you people do things now?

Trying to solve aperformance problem I tried to move my profile from C:\Users\Peter and Carol\Profiles\sjig3laj.default to "C:\Users\Profile\." -- when that did not work, I was unable tomove back to the original location, TB telling me "Local directory path ... is not suitable for message storage". How do I get back to the config that worked before ? (was just slow)

mozillla or thunderbird is changing an email password blocking my access to send email from account it will not accept the password i set for account, in saved passwords it has a huge password stored that i did not set ,,also that password is not accepted it was hard enough to get that email set up on a w10 pc and a w11 laptop, this problem started when i allowed an update to t-bird, further updates have not helped on update 115.10.1, it want to update again, i have use mozilla and t-bird for 30+ yrs and the problems keep getting worse not better and has become almost user unfriendly. to add an email, should require 1)user name,, 2) email address, 3)password. thats it , it shouldnt require a IT degree to set up the rest

Old PC is Dell WIN 10. New PC is Dell Win 11.

Is there a way to move the entire program from the old PC to my new WIN without having to re-install

Please advise. I don't want to start from scratch.

Enclosed are jpg copies of the current sets of filters failures in my TB email program.

TB Error0 shows the 6 emails that have arrived and are placed in the INBOX. However, each of these has a corresponding filter set up to move them upon arrival to a separate subject email mailbox.

Note: If I highlight the INBOX and then go to Tools > Run Filters On Folder ... all of these INBOX email messages will be correctly filtered and moved to their respective email mailbox, BUT each of them is shown as having been "read" and unless you pay close attention, you may not know where these INBOX emails were sent.

I am also enclosing TB Error1 & 2 that show the last couple of days message filtering errors.

I can find nothing wrong with how each of these filters are set up, yet they seem to consistently fail to operate when new emails arrive.

Note one of them is for incoming emails from ... schiffsovereign.com. I have edited this filter repeatedly, even deleted it and re-input the information. Yet the filter never takes hold and does what it is designed to do. I am enclosing a jpg of that specific filter as TB Error3

I am looking for suggestions on how to fix this problem.

Thank you and best wishes,

/s/ James T Saint, CCIM COO

after the last Thunderbird update a username/password request pops up: "Authentication Required" cloud80.hostgator There is no Hostgator account so the only option is "cancel" only then will Thunderbird download emails. how to remove this https//cloud80.hostgator request?

My husband (DG) is 88 and beginning to have severe memory & analysis problems. I recently tried for three days, using his computer, to set up an account for him on the Social Security site, that I could oversee. It accepted a password, but kept asking for a 'backup code' that supposedly was 'assigned' - so I would have a second method to verify the account. There was no way, on that web page, that I could request a 'backup code' or ask for the '10 backup codes' that were supposedly given automatically. I wanted to simply get a letter that explained his SSA eligibility, so we could apply for Senior housing. I was able to call SSA and request the letter - but it will take 14 days by mail. We need it now - and I should have been able to simply download a PDF eligibility letter to print out. In less than 5 minutes, I was able to request and download an eligibility letter for myself on MY SSA account - but could not do it through his SSA account. I need to be able to communicate with SSA (& other agencies) and receive their replies through an email "AccountForDG@centuryxxxxx.net" that I can read in my email account "CuriousQuestor@centuryxxxxx.net). How do I set this up? Thanks in advance.

My Charter.net mail has suddenly started to come into my inbox and automatically is moved to trash by Thunderbird. I do not have antivirus, i have not changed any settings, it is POP.

Using the system color theme, where my Windows 10 system is set to the dark color theme, I see Thunderbird 153+ Meadow showing popup menus with weird dark teal background. The standard Window menus (File, Edit, ..., Help) appear to use slightly different background, which still doesn't match my system color. Is there a setting I'm missing to have these menus shown with my system dark color theme (like current Fx, and previous Tb versions)?

I'm using my system color accent setting, but I'm seeing changing this Tb setting doesn't seem to affect the menus background.

I've also noticed I'm not seeing this on Windows 11 – the menus background is fine, although on Windows 11 I'm still noticing this teal "accent" appearing in certain elements of the popup menus, f.e. the color of menu item keyboard shortcuts.

My business has two domains. I can send email to a Gmail account holder using the primary domain with no issues. But amy emails from what I call the "secondary" domain below are treated as spam. This occurs with two different email addresses using the secondary domain.

Both domains are hosted with Bluehost. Exhaustive research has revealed the following:

• Settings in Thunderbird are exactly the same, e.g. ports, security, SSL/TLS, etc. for each domain.
• There is no subject line or content that could possibly be regarded as spam.
• MXToolbox indicates that the secondary domain is not on any blacklist.
• Extended support via Bluehost reveals that SPF, DKIM, and DMARC records are all correct.
• Email sent to a Gmail account using the CPanel (Roundcube) is not flagged as spam. Only emails sent via Thunderbird are flagged.
• Emails sent to a Gmail account from the secondary domain using my mobile phone, but still on the same network/IP address, are not flagged as spam.
• If I first send an email to one of the secondary domain emails FROM Gmail, then reply to it, the reply is not flagged as spam.

After many hours of head scratching (and later, head banging), I am pretty much at my wit's end with this problem. I'm an electronic engineer but this one is definitely out of my wheelhouse. Any help would most certainly be appreciated!

Thanks in advance, Don