Thunderbird-Hilfeforum

MacOS Sonoma 14.4 seems to have broken a number of apps. AFter updating to Sonoma 14.4 I experienced a great number of crashes with Thunderbird, so I completely uninstalled Thunderbird and removed all traces of plists, Application preferences, everything, reinstalled Thunderbird, and added back the two email accounts I use with it.

It now takes up to 30 seconds to start up Thunderbird, after which it happily no longer crashes, but obviously the startup time is unacceptable. I experience the same problem with Typora, and the developers there informed me that they believe the problem is with a Sonoma change that broke WebKit. I don't know if Thunderbird still uses Gecko or if the new version is WebKit. Please let me know if other Sonoma users have reported this problem or if it's just my system.

My Thunderbird has been working properly for about 30 years, but now refuses to open. Message received says 'Authentication failed'. This happens repeatedly (for at least 20-30 times) and appears to relate to my password. It suggests 'Retry' or 'Enter new password'. The 'Retry' repeats as before so I check the Saved Passwords and enter the one saved. I get the same message. I am using Version 115 and have been for some time.

Could this be related to a change of Profile? There must be a way to reset the password? I have checked all the settings and no errors appear, all settings confirmed.

I have thought about a Recovery Mode and seem to remember seeing a message that I do have that. I just don't know how to access it.

I can't send emails out of Thunderbird but can receive them, not sure what to do? Is there a phone number I can call with Thunderbird for help? I'm not that savvy with all this.

I have made many attempts to move Thunderbird from my old Windows machine to my new one. The old machine was running Windows 8.1, the new one is Windows 11. I've exported, then imported using all the different ways listed but can't get all the data. I've had some success doing it one account at a time including my address book and accounts setup information and they are working properly but can't get the folder data for my accounts or any Local Folders for some reason. I don't want to mess up what I've been able to successfully migrate so I'm reluctant to doing a mass migration again. Is there a way I can migrate doing it one folder at a time without messing up the other ones?

Hi, I have several issues regarding signatures -

1) how do i make a signature consisting of some text as well as an image - i have created my signature in a new email, saved it as a HTML file and used it as a file for my signature..

2) but when i create a new email - it shows for like a 1 second and then disappears.. doesnt appear in replies or forwards..

3) i tried to instead just use an image as a signature.. again just shows up for 1 second in replies and forwards and disappears..

have set all settings as instructed in the various answers in the forums..

Please assist. Thanks

I have, very reluctantly, had to stop using Windows Live Mail, because gmail will no longer support it. It was a great email program and it did everything I needed. Thunderbird would seem to be the nearest thing I can find to replace Live Mail - but there seems to be some quite staggering basic functions that are missing from it. Maybe I'm alone in wanting to include a picture or two in my emails..? - not as attachments, but as part of 'the visual letter', within the text? Live Mail must be 20 years old at least - but in Live Mail I could insert an image; drag the corners to resize it; add a box rule if I wanted to; and send it on it's way. In 21stC Thunderbird I can, with many a dialogue box, insert an image... but even when I've worked out how to 'resize it', it doesn't actually reduce the file size of the image sent..! So a 7MB image, when 'resized' to something less than 1MB... still actually gets transmitted as a 7MB image - and takes forever! So my question is. How come an ancient, now almost defunct program like Live Mail, is twenty times more agile and user-friendly than 'up-to-date' Thunderbird? And before anyone mentions 'add-ons' - Live Mail did all of this straight out of the box! No 'add-on' searching or anything else required. But maybe including a picture or two in an email is a fairly revolutionary concept? With thanks for your thoughts.

I'd like to suppress displaying message Subject in the folder contents pane. (I'm in vertical view and would like the message contents pane to be wider. To accomplish that I'm willing to sacrifice listing the Subject in the folder contents pane. Tbird doesn't list that as a column I can select or deselect. Any ideas?

The real goal is to make the folder contents pane narrower. But it seems to not allow me to make it any narower than it is. A9(I can widen it, but that doesn't help. Is there any any to change the minimum width Thunderbird has set for that pane?

Delivery Status Notification Does Not Work!!! and hasn't for about a year~! I have the latest version of Thunderbird, Ver 103.3.2 (64 bit) ! I am wondering if there if it's my Breezeline email server or is there an issue within my About:Config properties?

Unified Folders in Thunderbird 115 for mac no longer works. Useless! Computer Tech specialist here and have been using Thunderbird for ages. With this latest version, the inbox, sent, etc etc etc no longer display as unified. The Unified Folders category when ON shows as its own item in the left column with a single empty inbox! Scrolling up and down to each account for each subfolder is a waste of time!!! Hope you fix this ASAP!!!!! Unified folders works fine in 10.12.13 but I cannot got back to that due to your system.

Hello! I accidentally hit 'K' with a thread selected, and so got a message at the bottom of the screen saying that replies to the thread will not be shown. This is the same situation as in the now-archived question [[Accidentally pressed "K" on an email - can no longer find it|https://support.mozilla.org/bm/questions/1380096]].

I'm now writing because I *was* able to select the option to display ignored threads described in the reply to the question above – so that I can, at least, now see the thread that I accidentally ignored without meaning to. But I'd like to actually fix the problem and un-ignore it.

I've read the support article on Ignoring Threads, but what that article describes – namely applying 'Ignore' to the same thread so that it toggles off to unignore the thread – isn't working. I also tried quitting Thunderbird entirely after doing that and then reopening it, but I can still only see the thread if 'view' is set to still display ignored threads; when I remove that view instruction, the thread disappears again.

Does anyone know if there's something else I should try? Or is this maybe a bug in Thunderbird that needs to be fixed? Thanks so much in advance!

I currently have Thunderbird set up using POP but would like to change to IMAP to sync with my other devices. If I change from POP to IMAP, a. will that affect the emails that are currently showing in Thunderbird and b. will the emails that are in Thunderbird then appear with my other points of access?

I am getting desperate as the harder I try to sort this out the bigger mess I get in.

I think after about 20 years I may have to stop using Thunderbird but I do not know what other Email client to replace it with as they all seem to be confusing.

The archiving problem particularly relates to gmails but I cannot understand the gmail webmail system at all - it seems to sort emails into categories I do not understand or need or want to use.

I cannot send a screen shot easily due to the confidential nature of emails

Hello! How can I highlight and view my multiple inboxes at the same time? I am coming over from Apple Mail, and I have multiple email accounts; Personal, personal work, bills and utilities, junk mail, etc. In Apple Mail, I would hold command or shift, and could highlight a couple of email inbox accounts and see all the emails together. I can not seem to find the key combination in Thunderbird. I would love to ditch Apple's eco system, but that one feature I'm still puzzled with on how to do it. The individual email accounts are setup in Thunderbird, that part is good. Just can't view them at the same time. Thank you so very much!

The spell checker is constantly using English (USA) and not English (UK). No matter what I set it to it reverts. I suspect every time there is an update it does this and it is extremely annoying for anyone living this side of the pond (In the UK).

PLEASE can we have English (UK) by default. I notice when you add it to the list of languages in settings the USA version cannot be deleted.

Hello

Please can you urgently help with this issue.

We cant seem to access our Thunderbird email today. !

message : - "Server outlook.office365.com has disconnected. The server may have gone down or there may be a network problem"

Please advise ?

Many thanks Stavros Kosta

I have purchased the Owl addon so that I can use two Microsoft 365 email addresses in Thunderbird, I have set them both up and they appear in the side panel with my other email addresses but only one of them will send or receive emails. Please could someone supply up to date instructions on how to set two exchange accounts up. Thank you