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Firefox auto updated when I opened it today. Then when it opened, all that was on the screen was the menu (file edit view history bookmarks tools help), the "search or enter address" box, and in the upper right hand corner the words "private browsing" with the purple circle and eye eyeglasses icon. That's all. I have tried looking at my profile. It seems to still be there. This seems to be a problem with the Firefox software itself. I have re-downloaded the software three times, the last time I uninstalled Firefox from my laptop and totally reinstalled. Every time I get the same results. This almost blank screen. Let me be clear. There is no purple background, there is no Firefox icon, there are no tabs, there is no customized menu bar, there is no search box in the middle of the screen. I'm working on a Windows 10 laptop 64 bit. Please don't tell me to upgrade the Windows 11, the laptop won't take Windows 11. I get the same window whether I open the regular fire fox or the private browsing Firefox.

I have a custom pitch black theme ( pls add it without addons ) which now only flashes for a second when i open the browser and returns to the normal greyish dark mode. When i go to Firefox Color addon page and load it again in saved themes it stays pitchblack even if i open another browser window until i close all the browser windows .

I am not sure what to do first. I already paid for the VPN subscription. I reinstalled Mozzilla VPN but have not yet put the sudo lines in that are listed in the help on Firefox. Can you send me an email with instructions and any special sudo lines I need to intall so I do not get charged a second time. I heve the recovery code. I am new to Mint. Windows 11 started knocking out my hardware with power surges. Had to come from the operating system itself since the machine is hooked to a power backup that smoothes the current out. Converted everything to Linux. Like it. Life can be cruel... LOL Thanks so much for the effort. [edited] landline, but best bet is email. [edited phone# and email from community support forum]

I made a mistake. I had 128 and went up to 140. It pretty much looks the same, but a big difference is an extension I always use says it will not work with 140. I don't care how good 140 might be; if I can't use my app, QUICKTEXT, then I don't need this. How do I go back to 128 or to a version that works with my extension?

Thunderbird just auto updated and will not open. Crash report opens as the program crashes. I didnt realize it had updated until checking files. Do I need to reinstall revert back to the old ver. Please advise. Thanks

Hello there. I've followed the instructions in the appropriate support article and transferred our Thunderbird profile from a Widows 10 machine to a Windows 11. My profile as a .zip file is larger than the 2GB limit, so I used the Widows Explorer cut and paste. It's likely that I've done something slightly awry as one of my local sub folders hasn't transferred. Otherwise TB works fine. Is it possible to just restore the particular local folder, as I can find both the entries in my mail folder on windows explorer? However the view of the two entries looks rather different on the two computers when I compare a local folder that has transferred. Regards, Arthur

I read the instructions on moving my profile to a new computer. The hitch is that on my current, Windows 10 computer, I’m apparently using a 32-bit version of Thunderbird. I only discovered this when I updated it (through Help) and saw that it updated to a December, 2024, 32-bit release. The transfer instructions state that there may be a problem if I try to use a Thunderbird profile from one version to a different version. To prevent that possibility, I either have to update my Windows 10 Thunderbird to the latest, 64-bit release, or specify the 32-bit install on Windows 11. Problem is, I don’t know whether or how I can update Windows 10 computer to latest Thunderbird 64-bit version. Can I? If not, will Windows 11 run a 32-bit release? Suggestions?

Hello!

I started using Thunderbird quite recently. After an unsuccessful installation, Thunderbird deleted it, as well as deleted the profile folder. In order to perform a clean installation of the program.

But after installation, Thunderbird started, to my surprise, already with accounts, and even with add-ons installed. I have not found an answer to my question about the complete removal of the program on the Internet. The only article found from this resource turned out to be without text: just the title. Here is the link to it: https://support.mozilla.org/en-US/kb/uninstall-thunderbird.

As a result, I cleaned out the entire registry, as well as all the folders found by the search. And only after that it was possible to install Thunderbird cleanly. In my experience, such deep cleaning has a detrimental effect on the Operating System. And I want to avoid this in the future.

Can you tell me how to remove Thunderbird from your computer COMPLETELY? What exactly should be deleted?

(This is a machine translation)

Up to now Thunderbird was installed on C:, while the profiles directory was on D: (including the local files). As C: was getting saturated, I installed the latest version of Thunderbird on D:, and used the Profile Manager to tell it to load the existing profile. Upon launching Thunderbird, it did find all the connected accounts and connect to them, yet didn't display any local files. However, when I look at the location of the local folders in the new installation, it points to the "old" local folders, D:\Users\[user]\AppData\Roaming\Thunderbird\Profiles\Mail\Local Folders, and all the local files I used to see in the previous installation are there. Yet they don't display in the "new" Thunderbid. How come? What should I do? Thanks for any help.

I'm trying to link a Gmail calendar. It started to work initially, then something went wrong and I had to start again. This time, in the Create New Calendar window, it says "The credentials you have entered were not accepted. Please check your settings."

I know the credentials are correct. I've tested them separately. The failed attempt may have left some junk behind. Is there some way to clear it? Thunderbird is up to date, version 1284.0esr (64 bit) on Win 10.

Thanks, Bill

This is minor, however, some addons that I need currently only work up to version 138. The version found at Index of /pub/thunderbird/releases/138.0.2/win64/ is actually version 139.x. I was able to download 138.0.1 at Index of /pub/thunderbird/releases/138.0.1/win64/

I created an export .zip from Tbird on my current Win10 PC, intending to import it into a new Tbird installation on my new Win 11 PC. This is the second such migration: I did my own mailboxes no bother last night but this time its my wife's. My pack was less than 2GB, hers is just over.

I unzipped at the target PC, and attmpted the import. It failed with this error: Uncaught (in promise) DOMException: Could not open `C:\Users\marie\AppData\Roaming\Thunderbird\Profiles\39la2kp7.default\prefs.js': file does not exist (NS_ERROR_FILE_NOT_FOUND)

Is there any alternative to demanding even deeper pruning of her archived messages?

Dear support/community, I'm a little confused on the support of 115 version of thunderbird. It has been kind of treated as a "esr" version, like below 115.16.0esr indicates.

https://archive.mozilla.org/pub/thunderbird/releases/115.16.0esr/

I know firefox is stopping update until end of 1Q 2025, and my assumption that applies to all Mac, Windows and Linux and till then firefox will get high/medium CVE patches if impacted --- is this the right assumption?

I'm not sure about the situation of thunderbird. while I intend to believe similar to firefox, also told that 115.16 is the last 115 version.

Thanks.

Installed latest version of TB and want to migrate account settings and messages from Postbox to Thunderbird. I used the TB import tool and selected the active Postbox profile to import. All three accounts were imported. All the emails in one account were imported. In the case of the other two accounts, one of which is active and one is inactive, TB only imported the message headers only, not the contents.

I then found a migration app from a software company that was supposedly designed specifically to migrate Postbox accounts and messages to TB. When I ran the app, I got the exact same results as when I did it manually.

Any ideas on why the message content is missing on all emails in the two other accounts? The account settings are unchanged from Postbox.

Thanks!

I hope I’ve chosen the correct category. I believe this qualifies as a bug following the recent update.

When I opened Thunderbird today, it notified me about the update. While Thunderbird successfully fetches new emails, it fails to display them correctly.

As shown in the screenshot, the area where the email content should appear is completely white. Additionally, it incorrectly displays an attachment from an old email that has nothing to do with today’s email (10:13), aside from the fact that both were sent to me.

When I click on other emails in the same inbox, the content area doesn’t change—it remains blank. However, if I switch to a different inbox, everything works fine.

I’ve also double-checked using my phone’s mail app, and I’m able to open the email in that inbox without any issues.

I’m unsure how to fix this. Could someone more knowledgeable help me out?

Good morning, I had asked a question early on Saturday, but was unavailable the rest of the weekend so just now responding to associate Corey Bryan's answer. I had gotten a message that I am using an unsupported version and they recommend downloading the latest stable version.

He said it appears that I'm on the "Release" channel and most likely want to be on the ESR channel. I also mentioned that I am a cave-man when it comes to anything computer and am very skittish about making any changes as I don't how to straighten out any errors that might occur.

He asked me where I installed Thunderbird from and the answer is that I don't know. It was an IT guy that did it many years ago.

So I guess my questions are, if I've been using this version for years, do I need to or should I update it? If so, if I click on the latest stable version of Thunderbird, will that change anything on my computer, aside from getting the newer version of T-Bird? And will my e-mails in Thunderbird look any different?

Thanks very much for the help. Tony

When I exported my Address Books from Thunderbird on my Windows 10 (64 bit) computer it saved them as a Home.ics file but there is no option to Import and .ics file on Thunderbird 128.4.2esr (64 bit) on my new Windows 11 computer. How do I Import my Address Books with an .ics file?