Thunderbird Community Forum

I have tried using the troubleshooting guide suggestions without success. The email is not on the server as verified by webmail, but still resides in my local inbox. Can I manually access the database offline and delete this email? I have two other gmail accounts that are part of my Thunderbird email client version 140.5.0esr (32-bit).

My C: drive is almost out of available memory and the following profile, jrqu4wd0.default-release, is the culprit. If I delete it what affect will it have on Thunderbird.

Is it possible to open incoming mails in the same window as the list of e-mails, just like in Google? I get distracted from seeing suddenly my e-mail in another window/tab.

Thank you!!

I gave up on Outlook after a zillion years using it. When I reset my O/S (win11) I had to reinstall Outlook from Office, all paid up and legal. Nothing but problems trying to get my backed up PST file from previous Outlook. System kept trying to get me to subscribe to Windows 365 crap. I had standalone 2024 version of office. When I installed Thunderbird (I have it on laptops and other computers), I entered my email and voila, in about 1 minute I was sending and receiving emails. I had spent 6 hours on Outlook, even using AI (Copilot) to help me. I was SO IMPRESSED, that for once I donated to Thunderbird, $30 CAD.

Now, I used Mailstore to get my pst file, something I could NOT GET OUTLOOK to do, and have it available to export to Thunderbird, or for TBird to IMPORT from the pst. Neither one worked, telling me that TBird didn't have a profile for the transfer, or some such notation.

Any help would be appreciated. Like many of you, my whole communication life is in those emails (I have about 40 folders where I saved stuff).

I keep getting the sign in request (photo 1) and when I click the next button I get (photo 2), I have no idea what has changed or what I can do to stop it. I would be grateful of any help.

本件はIMAPでMicrosoft365アカウントをサインインしようとしたときに発生している事象です。 最初のユーザー追加画面で氏名とメールアドレスを入力します。 その後、メールアカウントの種類を選択する画面でIMAPを選択して「続ける」をクリックしても「設定を検証できませんでした。ユーザー名とパスワードが正しい場合は、サーバー管理者があなたの選択した設定を無効化している可能性があります。別のプロトコルを選択してみてください。」と表示され追加ができません。 上記メールアカウント選択画面で「設定を編集」をクリックしても結果は同様ですが、「詳細設定」→「テスト」をクリックすると、「次のアカウント設定が、指定されたサーバーを調べることにより見つかりました: 」と表示はされます。 しかし、続けようとすると「受信サーバーの設定がすでに存在しています。」と表示されてしまいます。 なお、Exchangeを選択した場合は追加できます。 Microsoft365アカウントについてはIMAPを有効化していますのでアクセスがブロックされているわけではないと考えています。 解決策を教えてください。

I have a problem with Thunderbird on Kubuntu 24.04.3. The drag and drop of mails from inbox to TB-folders stop working after a while. It always happens when I minimize Thunderbird and maximize again, then the drag and drop has stopped working. I have also seen it if I for instance make a new folder, then it also stops working. It has been going on for a while now, at least the last 3 month. I have automatic update on, so I an running the latest version right now 140.4.0esr (64-bit).

Hello,

I have a MacBook Air M2, and I'm experiencing energy usage issues related to Thunderbird. This has kept happening for a long time now actually, surviving through at least two Mac OS updates, and a huge number of TB updates. Everything's up to date. I tried to follow this: https://support.mozilla.org/en-US/questions/1269944 and this: https://wiki.mozilla.org/Thunderbird:Testing:Memory_Usage_Problems?_gl=1*86dj4d*_ga*MTkzNzQ0MjA3MS4xNzYyOTY4OTMx*_ga_2VC139B3XV*czE3NjMzMTM3NDckbzIkZzAkdDE3NjMzMTM3NDckajYwJGwwJGgw but didn't succeed. Actually, in my case, the issue is more noticeable: I normally have TB open in background - sometimes everything's fine, and the battery goes down as normal, while sometimes instead the battery drops quickly, and checking in the Mac activity monitor I can see that the CPU usage of TB is totally abnormal. When this happens, I can actually see the activity bar in TB being live (bottom right corner, as it happens when TB is checking for new mails), but never disappearing. When I notice it, I just reboot TB, and the bar shuts off as normal after a quick mail check. Moreover, checking the 24hr energy usage by app, TB is often on top with nonsense values.

I tried multiple times to rebuild the database, and do most of the tricks suggested, but didn't fix. Yes I have a huge mail archive, but the problem is not the standard management of this database: basically it seems that every now and then, TB decides to run some activity which it gets stuck in, and this kills the CPU.

Thank you in advance for your help!

Hello Everyone,

In Thunderbird, I'm receiving a notification that I had a new email, but then it disappeared and didn't appear in my inbox. It reappears after about an hour. (but i'm not sure if i'm receiving all the email email or not) This happened after updating to Windows 11.

There is enough space. I uninstalled and reinstalled. It's up to date. The emails are not in any other folders. The same problem occurs on the website. Everything is working OK with my company email address; the problem only occurs with my personal email address, and I use both on the same laptop. This issue happens with all received emails from all email providers, such as Gmail and Hotmail..etc. Can anyone help me with this issue?

Namely, that my antivirus program quarantined the entire inbox file upon detecting malware embedded in a single message.

So I encourage people who encounter this issue to explore that as a potential cause.

Thanks to those who responded for the help and patience.

On each restarting of Thunderbird, my remote (caldav) calendar is switched off.

None action can do to remain enabled this calendar. When it is switched on, all work fine, but when I restart Thunderbird, it is switched off again and I must switch on it in the properties dialog.

On Linux Debian 10, Lightning 68.9.0-1~deb10u1.

I have been setting up laptop for a local sports club. The underlying email account is a gmail account and I have used Manage Identities to set it up so that by default emails show as coming from the club's domain-related account, e.g. manager@sportsclub.uk. All seems OK; however, the email one receives from the account shows the correct signature, but still as coming from the gmail account Curiously though, if one hovers over the email address it shows the name of the 'manager identity' even though the display shows the name of the underlying gmail account. Everything is set up exactly as I have in my personal Thunderbird account which has several identities and all work as expected. The only difference is that my email account is a Plusnet one. So I assume that it must be a feature of gmail. Does anyone know if that is the case and what one can do about it?

I have been having using Thunderbird as my email package for over 10 years and lately have been having issues. I was looking to cleanup the install (version 140.5 esr) and noticed an older version of the app still exist on the computer (version 68.4). will deleting this version have any implications. This computer was originally Windows 10 but has been upgraded to Windows 11 when the problems seemed to start appearing.