Thunderbird Community Forum

Lately, Thunderbird has been using excessive CPU time even when idle. I am on Windows 11 and running the 153.3.1esr release of Thunderbird. It's impacting other applications. When I exit Thunderbird, everything runs faster. Right now it's using over 7% CPU and about 500 MB of ram.

Hardware is HP Pavilion Desktop 590-p0xxx. Intel i5-8400 2.8 GHz 12 GB ram.

how much space can i add to Thunderbird if i want to send a video or file without adding a n app r to do it. Where it says add files how much can iput thee can i go like 500 or more

"The certificate for pop.centurylink.net:995 is not valid for that server. Someone could be trying to impersonate the server and you should not continue."

when I set an exemption, the problem remains ???

I received an invite to join thundermail. I began the process of signing up, however I was unable to finish fully activating my account due to losing internet at my apartment. The email says while the invite doesn't expire, the address I chose does, which I presume has already happened, but now when I attempted to go through the process again I get a "WE'RE SORRY" page when I attempt to follow a link from an email that lists: "

Your administrator has just requested that you update your Thunderbird account by performing the following action(s): Verify Email. Click on the link below to start this process."

Not sure exactly how to proceed. More than a bit cumbersome.

I can't find the certificate in order to delete/distrust it. Its name is my mail server. Organization: Lumen Technologies, Monroe, Louisiana

Subject Name Country US State/ProvinceLouisiana LocalityMonroe Organization Common Name Lumen Technologies, Inc. mail.centurylink.net Issuer Name Country Organization Common Name US DigiCert Inc DigiCert Global G2 TLS RSA SHA256 2020 CA1 Validity Not BeforeWed, 27 Aug 2025 00:00:00 GMT Not AfterSun, 27 Sep 2026 23:59:59 GMT

Hi,

I used to scroll up in current message using Shift+Space, but it stopped working for a few days now. it's not mentionned in moving around TB, so I don't know if it was normal behaviour or a feature added by TB's arch maintainer.

some time ago my email provider (verizon) sold service to AOL. Since then ihave not been able to get email on thrunderbird. Woud really like to return to using thunderbird. What can I do?

How do I make Thunderbird open a new window instead of another tab? When I open a PDF file, setting, address book, or other, it always goes to a new tab. When I want to close this file, I often forget it's a tab and close the whole program! Annoying! I want these thing to open in new windows instead where I can hit close without shutting down Thunderbird.

My email account is handled by a university that uses Office 365-based Microsoft system for email accounts. My institution now requires that email client programs us MS Graph for authentication. Does Thunderbird 156.0.1 have this capability?

I use Thunderbird on multiple computers, sharing an NAS. One is Windows 10, one is Linux Mint. Both have Thunderbird 153.3.1esr installed. The email Profile and email file storage is on the NAS. The "home" folders on both machines have a profile.ini file that points to that shared profile. This worked fine for many years.

For perhaps 6 months i've only accessed email from Windows. Now i'm trying again to access from LinuxMint. It no longer works.

From Linux, at startup, Thunderbird complains that i'm trying to open my profile from "an older version of Thunderbird". A popup dialog claims "A newer version of Thunderbird may have made changes to your profile which are no longer compatible with this older version. " It offers to create a new profile.

First, the same version last edited the profile as is reading it. Second, i don't want to create a new profile, as the existing one has multiple email accounts at multiple domains, with multiple sigatures, and custom storage paths, etc. I tried profile manager, but it just takes me back to this dialog.

How do i get Thunderbird to use my existing shared email storage ?

None of the methods listed, either via Thunderbird or on the Internet in general work. Or, if they are supposed to work, the directions are not complete or accurate.

I'm trying to move stored emails from Outlook 2019 POP3 Windows10 32-bit into your latest Thunderbird. NO luck. Yes, I get a .CSV file from Outlook, and change it to MS-DOS version, then nothing. Similar with names/address. There is a lot of talk about having to use EML as the transfer medium--but, Outlook can't create EML. Worse, within Thunderbird, even with you Import/ExportTools NG add-on, there is no commone EML linkage to make the transfers work. SO...where is a guaranteed method to make these transfers work?

As of now Thunderbird is just a crude mail client--I can receive emails, I can send emails (but have to manually enter the address). None of the old Outlook emails are available. None of the old Outlook addresses are available.

Don't mean to be so cynical; but, I'm so tired of software making promises and then not delivering.

Robert Yohe, Jr.