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Hello Since I changed my TB Android incoming server setting from POP to IMAP, Android has repeatedly reported app crashes. It asked me to clear cache, which I tried. See img attached. Eventually it said it was putting the app into deep sleep. Yesterday, after I sent an email to a gmail acct I was unable to find a copy of the email in a sent folder, there wasn't any Sent folder. There were only 2 folders, Inbox & Outbox. I expected there to be Sent & Draft folders. Eventually I discovered via Manage folders an Inbox.sent & Inbox.drafts. So I tried to change folders so Sent & Drafts are at 6the same level as Inbox & Outbox. Yesterday there were approx 26 emails in the Inbox. This morning there are 3 new emails in the Inbox & the 26 emails have disappeared & Inbox.sent, Inbox.drafts have disappeared. The 3rd & 4th attachments show the current folder settings. My TB Desktop incoming server serting is POP. Please tell me what I am doing wrong & what I must do to be able to see all my emails, received & sent. Thank you

Subject says it all. I installed Thunderbird maybe a month ago, because the web version of Yahoo email changed their interface, again, one too many times for me. I love the customizability of Thunderbird!!

If only I could get a handle on the odd checkbox behavior though ...  :-)

September 24, 2026 Hello. The Mozilla Firefox express connect to email icon on the taskbar shows a superscript of 2. I have no unread emails in either of my mail accounts. What is the 2 indicating? It has been like that for a couple of days now. Please help. Thank you. Helen

I apologize for the subject line, but there is no better way to describe the problem....

I've been using Thunderbird for a few months now and it has mostly worked well. Then this afternoon I was reading my mail in the Unified Inbox and I noticed something very odd. I had a number of emails showing in the header list with the same "From" and various subject lines. On the face of it, that wouldn't describe any weird behavior except that I noticed the subject lines absolutely didn't match the "From" information.

As I would go to read these emails, the email itself would be correct in the preview pane -- including showing the correct sender name and email -- but the "From" information in the header list pane would still be wrong.

I'm sorry that I can't post a screenshot to make this more clear because there is just too much personal information on screen. But these emails are from several different senders, received by several different email accounts. Everything is correct except that the "From" shown in the header pane is wrong. This is very obvious to me because I normally run entirely in the Unified Inbox with the emails sorted by the "From" information

One example is an email that is actually from "U.S. Department of Veterans Affairs <do-not-reply@notifications.va.gov>" which Thunderbird displays correctly in the preview pane (where I usually read my emails) and if I open the email itself, but the header pane says this email is From "Prepper-co <joshua@prepper-co.com>"

Another example is an email that is actually from "USPS Customer Support <uspscustomersupport@usps.gov>" but the header pane says it is from "Rainier Arms <sales@rainierarms.com" < p></sales@rainierarms.com">

These two examples were received in different email accounts that aren't even on the same server. I have other emails from these same senders that are shown correctly

I found this problem while using 150.0 (64-bit), which said 150.0.1 was available, so I restarted Thunderbird and it updated to 150.0.1 (64-bit) but the problem is the same.

Bonjour, hier j'ai installé Thunderbird sur mon nouveau MacBook, j'ai récupéré tous mes mail, mais en fin de journée, il a disparu. Comment fais-je pour le réinstaller sans avoir à verser un nouveau don ? Par avance merci pour votre aide. Pourriez-vous me joindre au X Cordialement, Catherine

(PII redacted by moderator)

I have K9-mail on Android. Since 1 or 2 weeks my shared inbox is sorted wrong. I have two accounts configured and in each a couple of e-mails each days. When I step into K9-mail the shared inbox shows some actual mails and then their is a gap in time and the next e-mails are from April. If I am looking into the inboxes of each account, it seems to be correct.

Is their a sorting bug in the shared inbox?

I use Thunderbird, download on my PC computers (desktop and laptop) and on my iphone (using apple email set up - not Tbird app). I have noticed the folders are not synced on all three devices. Some are missing. Am I not doing something to sync them?

Hey Guys,

My Left click to open links from my emails has stopped working. I have to right click and select Open Link. I have tried everything, tried going through some of the config editor options i saw people mention for this issue and its all set to True already. There is no data besides PDF under the settings / attachments section. So cant change anything there. I tried a new profile, no go. I did a full uninstall and delete profile and started again, still same issue.

Left click to open links for everything else on my computer like firefox etc. Just cant open links through thunderbird. It used to work, it seems to have stopped around the same time as the latest update but i cant be sure about that. Only stopped working the last few days,

9/21/26

Dear T-bird Community Helpers,

This is my 1st use of any Mozilla mutual help community message board. I'm learning the ropes.

Re. the OS build: I never use beta anything. I established the folder, that went zero on me, recently (less than 2 weeks ago). I hadn't yet backed it up onto the cloud or a flash drive or other medium. Was just about to, but thought I'd rename the folder 1st, 9/13.

My mistake there, but not in the renaming. Never renamed a T-bird folder before. I had set up Thunderbird the week before 9/13, as a backup to e-mails in my Earthlink WebMail Premium account. 1st as a POP account, then later that week, after checking with a reputable AI interface, I made an IMAP.

Today I couldn't find any prior messages in this community board. That I, with my best focus, found relevant to my situation.

I try to learn what is involved, first, in decisions between products, accounts, and methods to follow. But I don't have all day. I don't short-shrift research, but I don't have all day. I relied on an AI bot when I had second thoughts on appropriateness of POP account, and it recommended IMAP account be added. Not substituted for the POP one, though---I asked it about that. too.

I work hard to learn computer terms but am not deeply skilled with computer stuff. I cannot generally read between the lines, to infer what sub-step to take to make the next listed step likelier to work. Nor can I understand very unnecessarily complex instructions, so please be feasibly simple in how you instruct me to find a way to restore my local folder. I don't know the exact name it had before. I use spelling tricks to keep folder names short, so there are MANY possibilities for the old name of that folder.

Your advice, please. I will be grateful for friendly, complete, instructions. Worded simply as is feasible. And questions 1st, sure, if you need to know more 1st.

         Thank You,
             AK

Editorial note - please do not put spaces at the front of each line.

In TB 155.01 when I click on Delete the email leaves my Inbox but does not display in the Deleted folder. If I look at Properties in the Deleted folder it shows the correct number of messages in there but the messages themselves do not show in the right hand window. Thus there is no way of seeing what the messages are, just the total quantity in the folder.

Hi, Fairly new Thunderbird user here. I've searched the wiki and support articles, but haven't found anything that addresses this problem. Details: I'm running Thunderbird 156.0 on a Mac, running MacOS 27.0, accessing a Microsoft Exchange account using EWS. If I want to move an email, I right-click on it, and have the option to: Move to "Myfolder Foobar" again (last moved-to folder), or Move To: > Recent Destinations > Favorites > my.email.account.com (EWS) > Local Folders

(Note that I can also drag the message to the appropriate spot on the folder tree.)

Of the right-click submenu options: The first, Recent Destinations, appears to show a recent single folder (but not the most-recent one, which appeared on the upper-level menu pick). The second, Favorites, is empty, (and I haven't figured a way to populate this list). The third, my.email, opens up a submenu that allows me to traverse my extensive list of folders in my Exchange account. This does work properly. The fourth, Local Folders, shows my trash folder.

My recent destinations setting is at the default value of 10. I tried changing it to 15 to see if that would jumpstart a change, but no change in operation.

Thanks for reading this far. My questions are: Is this a bug, or am I missing a setting in TB or Exchange which allows me to have the recent list populated with more than one entry? How can I populate the Favorites list? Searching the Settings tab gives no results.

tia, Tom

Hi, Hoping I can get some help here, I couldn't find an answer in the search topics.

I have lost a few local subfolders. First the subfolders lost the emails contained in them and then the subfolders themselves disappeared.

I renamed the main folder just removing the year from the folder name and not long after that the above happened.

I have tried the following:

• Searching the help topics • Searching the forum • Closing reopening Thunderbird • I removed .msf files and restarted Thunderbird

I am not sure what I can do now.

Thanks in advance for any help.

I go back to a message that's saved as a draft and often automatically click return rather than clicking edit. I click return and the entire draft message disappears. Please change the code so this doesn't happen! Thank you.

Od poslednej aktualizácie Thunderbirdu, sa mi prestali zobrazovať vlastné priečinky, ale na na poštovom servri sú viditeľné. Jednoducho ich nenačítalo. Má niekto podobný problém? Jedná sa o poštový server azet-mail.sk

Have recently upgraded to 156.0 and I find that the "Sent" folder in the Unified Folders shows the wrong folders. They are the same as the "Inbox" folder as you can see in the attached photo. What do I need to do to correct this?