Yonke imikhiqizo Community Forum

I'm running Thunderbird 140.3.1esr (64-bit) on Windows 11. Possibly because I was changing some settings, possibly because of a Thunderbird update, there are a couple of wonky things going on in my Folder Pane and elsewhere. Among them is the fact that one of my "Archives" folders now has a "Sent" icon instead of an "Archives" icon (see attached). Does anyone know how to fix this? I've tried the following: 1. Repairing the Thunderbird folder. 2. Restarting Thunderbird and my computer. 3. Installing the latest version of Thunderbird (without uninstalling though).

Out of a sudden all of my bookmarks were lost. I tried importing bookmarks i had previously saved in an HTML. Did NOT work. I tried "revert to older date bookmarks." Did NOT work. I tried "import from another browser."Did NOT work. Funny thing is that with the same HTML file i extracted from mozilla when i made a copy a couple of weeks before, i was able to upload all bookmarks to Opera but not to Mozilla!!!! The image below for the non Greeks reads "Failure to process copy document".

I wanted to synch my current settings in my browser to import them on my new laptop. When I tried to login to my account, I the message from the attached screenshot appeared. So I created a new profile, got my stuff back to what it should be and then deleted the "new" profile. But now every time I try to get into the correct profile and login into my account, I still get the message from the screenshot. I never ever synched with another profile before and never had an issue in the past. Right now I am rather pissed off, because I lost atleast some of my bookmarks during this whole ordeal.

Hello, I speak french therefore sorry for my english ! I have since 3 days, the impossibility to send a mail. I always receive an error message like this :

L’envoi du message a échoué. Une erreur est survenue lors de l’envoi de l’e-mail : erreur du serveur SMTP. Le serveur a répondu : bluewin.ch mailout-004.p.bluenet.ch Swisscom AG sc774: Blocklisting in effect.

This have been caused as I wanted to send a message to a list of more of 100 personn and the system of my provider (Swisscom Bluewin) blocked me.

I contacted them explained the situation and the have deleted the blocking list and if I go on the email of the provider Swisscom I am free to send message without problem.

BUT in Mozilla Thunderbird i am still blocked with the above mentioned error message !

I have controlled all my SMTP info and they are correct, I have try to disabled the Bitdefender security but no way it remains blocked.

My question is, is this blocking list only remaining in Mozilla Thunderbird and for how long time or someone can help me to cancel this blocking list in Mozilla Thunderbird ?

Many thanks in advance for your help

Clapas

While attempting to upgrade my Ubuntu Thunderbird client, I saw the attached screen. I'm concerned because of the unsophisticated style of the page, and the fact that it asks for my password, which makes me think "phishing". Can some trustworthy person confirm that this is a legitimate screen?

In your previous version of Firefox, I could click on "Bookmarks" above the search bar to see all of my bookmarks listed. Is that capability still available? I don't want my bookmarks showing in a toolbar. Thank you.

Rob

I have lost the possibility use Finnish dictionary for spell checking after Thunderbird upgrade to version 60.3.1. How could i revert to older version and prevent automatic updates?

I accepted update to Thunderbird version 60.0 but my Add-on has been disabled as non-compatible (Magyar (HU) Language Pack (Thunderbird) 52.0 and Français Language Pack (Thunderbird) 52.0.). When trying to find Add-on, same versions I have already are proposed and they are no more compatible with Thunderbird version 60.0 What can I do to have again spelling check available in French and Hungarian? Thanks for helping!

My husband and I have identical Thunderbird installations on identical Windows 7 machines, and for years we have been using 'QuoteAndComposeManager version 0.4.1. This allows us to set a 'pause' of 20 seconds between the time we click on Send and the email actually gets sent (it's amazing how many errors you can find in 20 seconds). This feature is still working fine on my machine, but on his it has been disabled with the message that it is incompatible with Thunderbird 60.3.0.

Two questions here: My update history shows that I am set for automatic updates, but the last one was to version 52.9.1 on 16 July 2018. This probably explains why I can still use the QandCManager, but why are we getting updates at different times?

More importantly, is there some other add-on that we can use to get this time-delay option? I have gone to the original developer's website but he does not seem to have a later version.

Many thanks.

I am finding it virtually impossible to find support for Mozilla products on support.mozilla.org simply because there is no obvious way to AND search terms rather than have the website OR them by default. When I get hundreds of results I want to refine them by adding more to my description, but when I do that I get even more results. If providing the option to select AND rather than OR is too difficult, at least have the search default to AND, which is in nearly every instance more helpful.

My Thunderbird version 52.9.1. First language = French Cannot upload DUTCH language package (as second language) because last version of complementary module appears to be corrupted. BA Brussels - Belgium 19-07-2018

I posted this and was told it was ;posted, but then I got a not found error when I tried to view it, so I'm trying again.

I set a site to use firefox as the default app for ftp not realizing ftp support was removed from the browser. I have been trying to get the dialog back that will allow me to change it. I downloaded filezilla to use for ftp. However, I am unable to get the dialog back that will allow me to change apps.

Can someone help me get the dialog back? And, before anyone suggests it, resetting firerfox to the default settings is not an option.

I am using Ubuntu 18.04 with latest Thunderbird (52.8.0). Normaly (in older verions of Thunderbird, like the one in Ubuntu 17.10), it was possible to just install a language like described here: https://support.mozilla.org/en-US/kb/how-do-i-use-firefox-spell-checker in order to use the spell checker in a different language.

I clicked on "Sprachen -> Wörterbuch hinzufügen" and downloaded the german language packet. Now in "Add-ons-Verwaltung", there is "Deutsch (DE) Lanuage Pack", and it is activated. Unfortunately, if I right-click on any text, I still can not change to german. This did not change when restarting thunderbird. For "Wörterbuch" (Dictionary), the link for download is not present (while it is present for other languages, e.g. Afrikaans), but the link for "Sprachpacket herunterladen" keeps beeing there, even if I installed the language packet.

There are other users complaining in the comments section of the language pack: https://addons.mozilla.org/de/thunderbird/addon/deutsch-de-language-pack-thund/ (e.g. "Sprachpakete lassen sich nicht installieren. Anwendung ist völlig unbrauchbar!" means "Language packets can not be installed. Application is not usable at all." which may be an exaggeration.).

Is this still the right way to install a dictionary, or is the link to the dictionary maybe wrong? Can I install it somehow manually or by apt?

I came across a site "mozdev.org" that gives instructions as to how to download a file called "mailtweak-0.16.xpi" Firefox will not allow me to download it and I cannot find it in the list of Firefox add-ons.

Please advise

Before the Thunderbird 45.0 update came through, I used to use an ad-on called TT DeepDark. Since the update, I get an error message telling me that this add-on is not compatible with version 45.0. Because of a visual impairment, I depend on dark themes so that I can read more easily. I thought at first that it was something with that one individual add-on, so I searched for one to take its place. However, it appears that no theme add-on available through Mozilla is compatible with the latest version. Is there any kind of time frame for when this might be fixed?

I do know that things often depend on individual developer, but since every single theming add-on is currently nonfunctional, I know it isn’t something like dependent on an individual developer.

Is there any kind of workaround in the meantime? I really depend on that dark theme so that I can use Thunderbird more effectively.

I'm looking for the romansh language pack that works with the latest version of Thunderbird under Ubuntu. Where can I find it?

I had the same problem before (see https://support.mozilla.org/en-US/questions/999183 ).

Thanks for an answer.

The AI chatbot is back in my sidebar. I did not opt in to this. I would prefer not to roll back to whichever version of Firefox is before the AI it's-a-feature-not-a-bug got wedged in; what other options do I have for permanently disabling AI?

Going to sidebar settings to hide the AI chatbot does not suffice. Evidence: I did that already, it has been undone, and I cannot now find the toggle in question.

Personally I vote for yanking it out of the main browser altogether, so people have to actively choose to install the AI chatbot add-on. But my question is about actions I can take myself.

Hi, Since the last update for Mozilla on the laptop (updated on 6/Oct/2025 - version 143.0.4 (64-bit)), all the shortcuts to websites in Firefox homepage I had pinned have disappeared. Also I can't add new shortcuts. I already have shortcuts enabled in Settings>Home>Firefox Home Content>Shortcuts.

Does anyone know how to solve this?

Kind regards.

Bárbara O.