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Suddenly, the conversation view has disappeared from my Thunderbird. This happened in version 128, and I have now updated it to the latest version, 138.0.2, but the problem persists. Previously, if I selected any message and right-clicked, there was a local menu option 'View as conversation' (or something similar - I use a localised version). Now, if I right-click the message, it opens with only two options: 'Open in a new pane' or 'Open in a new window'. No conversation view. The default shortcut (CTRL + SHIFT + O) does not work either.

(I did not change any settings, I only compacted folders and tried to rebuild thir index because the global search did not find existing messages.)

Any help on how to restore this functionality would be very much appreciated! Thanks

Thunderbird(TB) gets mail from Hotmail, my own domain, and gmail. I've use and auto-updated this program for the past 20 years. This is the first major problem I've had. Nothing has changed, ie: updates, new programs, or the like.

TB has stopped retrieving new mail since 05.12.2025. I can send mail but not receive mail. ALL settings are correct. I can go to the original sites individually and all the mail is there. Obviously I can send and receive mail on those sites, but TB will only send mail not receive it. The only thing I have not done is uninstall/reinstall.

Does anyone have any suggestions?

How to hide the share button in the address bar in Firefox on Android (nighly, single row bottom address bar layout). Together with reader mode and the translate button (if available) there is almost no space left for the address itself. Moving all three buttons to the menu (or at least the share button) would help a lot.

hi 大家好， 我用的是thunderbird115，imap协议收入邮件。我发现我的thunderbird 位置文件夹非常的大有565GB，但是我的邮件占用服务器的空间却只有40GB。我查看了我的配置文件夹里的内容，发现有很多名字为nstmp-数字的文件，有几十个，这些文件大量的占用了我的硬盘空间。想问问这些nstmp文件有什么作用，能不能删除他们，删除他们会对邮件有什么影响吗？谢谢大家。

我的邮件客户端为128.7.1，用的时IMAP协议。在客户端界面显示收件箱（包括收件箱下级文件夹）总共大小为78GB,但是在%appdata%中的thunderbird文件夹却有恐怖的795GB！！！我尝试压缩收件箱但显示只压缩了7.5GB。。有人知道这是什么问题吗？我应该怎样减小%appdata%中的thunderbird文件夹的大小？谢谢。

Whole thing running very slowly. Keeps trying to compact folders, Inbox I think,. Have about 88 000 messages in Inbox. Could just delete older ones, say older than a year. Any simple way of doing that?

I just did a fresh install of Firefox on my phone and with zero search history its suggesting "pornhub" in the URL when the letter "P" is entered. After deleting history, cookies, and everything else I can think of, this suggestion continues to happen. Even after uninstalling the app and reinstalling, it's continuing to suggest this website. Does anybody have a solution to blocking this suggestion?

We're exploring adopting a default deny policy for Firefox extensions in our enterprise. However when I tested this by creating a custom policies.json Firefox unexpectedly removed all extensions for me, including the ones I thought I had allow listed. Here is my policies.json but just keeping in the Facebook Container add-on to illustrate:

{

   "policies": {
       "ExtensionSettings": {
           "*": {
               "blocked_install_message": "Only approved Firefox extensions can be installed, please email your request to itdept@example.org",
               "installation_mode": "blocked",
               "allowed_types": ["theme", "dictionary", "locale"]
           },
           "@contain-facebook.xpi": { "installation_mode": "allowed" }
       }
   }

}

What I would like is to to allow pre-approved extensions (including if they already are installed) and all other types of add-on, but remove and prohibit installation of unapproved extensions.

Can anyone assist, please?

My bookmarks previously would be displayed on the left of the screen when I start Firefox. For some reason someone thought it would be an improvement to force me to use another click to show my bookmarks. Forcing the user to make more clicks is NEVER a good design choice. There seems to be no setting for getting my bookmarks displayed by default. Now there is just a setting whether or not to show a "sidebar" with a button I must click to show the bookmarks. Bring back my bookmarks please, or add a setting to allow me to get them back.

Thanks.

DELL's new monitor, U3225QE, can be connected via Thunderbolt 4. I can display 120Hz and Edge and Chrome display without any problems. Only in Firefox there are some areas that should be displayed in white but are displayed in pink. By the way, when connected via HDMI 2.1, the display is 120Hz without any discoloration. If you turn on the dynamic refresh rate, the screen will go black every time you move the mouse. When it is OFF, Firefox browsing does not change color and can be used normally, I called Dell support and they told me, "That's probably a problem with Firefox." By the way, the hardware configuration is CPU:AMD Ryzen7 9700X Mother Board:Asrock B650M HDV-M.2 Video Card:Asrock Radeon7600XT Challenger 16GB OC Thunderbolt 4 Expansion Card: GIGABYTE GC-MAPLE RIDGE It would be helpful if Mozilla could address this issue.

My Mac will not login to my savings/credit account. It does exactly NOTHING when I click on login. If I use Safari I can log in perfectly fine. Firefox also does not login to another credit card account and does the same thing. Everything else works fine in Firefox, except for these two accounts. They both work in Safari. What setting is causing this??????????