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Recently clicked to update to the next version of Firefox. Then I get the message "Restart to Update Firefox." I restart Firefox but the message is still there when I click Help > About Firefox. It would appear that the update did not happen for some reason. Do I need to re-install Firefox to get around this problem?

my thunderbird freezes at the point of checking mails. when i try to update it, it opens a new application completely and doesn't update my present one. i also can't find the location of the app or the data. pls help!!!

Hi, The question is in the title. I have imported my Outlook data in this 32-bits version (updated to 140.7) . I would like to keep them in a 64-bits version (147). I didn't find the solution. Thank you for helping me. Michael.

Desired behaviour Please add an option that would make Firefox update only when:

• a) Firefox is completely closed — no open windows, no active profiles, no running `firefox.exe` processes of any kind.
• b) A Windows reboot or shutdown has occurred.

Current problem Currently, Firefox sometimes initiates an update while a session is still open — for example, when opening a new profile or seemingly at random. This interrupts active work and forces the update at an inconvenient time, meaning all tabs and workflow are disrupted.

Suggested improvements

• A good extra option could be modelled on Windows Update, which provides a series of delay settings.
• The update should wait until all `firefox.exe` processes have ended (currently, opening a new profile can trigger an update even with another profile running).
• A forced update that disrupts current work feels overly aggressive, especially when the update is not mission-critical. Even if it is critical, the timing should be a user choice.

Alternative approaches

• A selection could be provided to wait until the user has naturally finished, with all instances closed by choice, or until the computer is restarted after a Windows boot.
• A popup could appear with options to delay, or a notification saying "Update needed — please close browsers." There is no need to force this.

Workaround difficulty At present, the only way to achieve this is by writing a script. This overly aggressive update behavior could instead be controlled by a simple setting for advanced users. Being overly concerned about security to this level, should be a user choice not force. Turning it off and making it manual is still not as helpful as automation.

Great work, I just noticed this occurring several times in the few months mid session. All good wishes

Recently we've began installing Firefox 140.2.0esr to our environment via the .msi file that Mozilla provides, however we're running in to a very odd incident.

After approximately 24 hours from installing Firefox esr to devices, it appears that the application is "updating" to 141.0.3 on the "release" channel. As far as I'm aware, this shouldn't be possible to begin with. But we've applied these settings via GPO:

Computer Config > Policies > Admin Templates > Mozilla > Firefox Application Autoupdate = Disabled Pin updates to a specific version = Enabled = Set to 140.2.0 Background updater = Disabled Disable Update = Enabled Manual Update Only = Enabled

After applying the GPO, confirmed this appears within the registry:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Mozilla\Firefox\ AppAutoUpdate = 0 AppUpdatePin = 140.2.0 BackgroundAppUpdate = 0 DisableAppUpdate = 1 ManualAppUpdateOnly = 1

At this point, I'm at a loss. We cannot have rapid release be what's installed in our environment. Is there something broken with 140.2.0 or are we doing something wrong here?

I haven't updated Thunderbird since version 52.9.1 because of the interfaces which are painful for me and I don't see much. it still works well but does not support encrypted emails. I would like to install a recent version of TB but how can I make it look like the older, much more configurable versions? Please tell me if this is even possible.

This is translated from French

Thunderbird just updated itself to a state where I need to do the setup process manually, which always takes a few hours (with networksolutions as the host). How can I continue to work with the previous version until the bug is fixed or I have time to go through the entire complicated process? Thanks in advance, Knut

Enough is enough—every update brings problems, crucial add-ons stop working, and now drag and drop attachments have stopped working. It's really inconvenient. Maybe it's time to stop this nonsense and implement paid subscriptions or purchases, but in a way that makes everything work.

Dear helpers,

I want to upgrade the hardware of a friend - and so I moved the homedir of the user to the new system, as I have done every time before in my life. But in this special case Thunderbird will not start with the used profile.

Thunderbird generally starts with e.g. the -P switch. But it will not start the default profile of the user. I tried to go this way concerning the versions 115 -> 128 -> 140 without success. I deleted all lock files, if there were any. I spent a lot of time with e.g. copilot - but it could not help me. I'm at a loss.

Is there any documentation with a kind of step-by-step instructions? Can you give me a hint, please?

Here are the details:

Source: linux mint 20.2 uma Thunderbird 115.18.0esr 11th of december 2024

Destination: linux mint 22.3 zena Thunderbird 140.7.0esr

Thank you in advance for your help.

I'm running Thunderbird on Mac OS 15.3. I have two POP accounts in Thunderbird; the configuration has been stable for years. This evening, I went to add a new account, and Thunderbird seemed to have decided to update itself, including flipping me over to Chrome where it opened a page about Supernova.

Thunderbird relaunched and came up with an empty "Chat" window. My usual mail window is gone -- and I can't get it back. I can't get an "About Thunderbird" window to open.

I actually can't figure out what happened. My mail appears to be gone. My accounts seem to be gone. I can't open Settings, I can't open Account Settings.

Wait, the mail accounts seem to still exist -- I can tell Thunderbird to check mail, and the POP server shows the checks happening -- but if I send mail to myself, nothing opens. Also, all of the Layout menu options are greyed out.

Help? :-)

Thanks, Vince

I get an error message when I try to update (see screen shot below). Thunderbird is on a Windows 11 Pro PC with the latest Windows updates. This has been happening for a couple of weeks now.

Thanks in advance for your assistance.

Rich

Signed on to Thunderbird a couple of days ago to see a message about a new release. Seeing no way around it, I went for the update. Thunderbird now opens to a screen asking for an account setup. Name, email, and password--which I assume is the main email server (AOL in this case). I fill this in, click on test, and Thunderbird comes back with an available POP3 configuration it found, which is not the one I have been using for several years. I try it out, Thunderbird tests the password and finds something in the password or configuration that doesn't work. I try a manual configuration the the correct pop3 and smtp addresses and get the same result. I am at a complete loss at this time. This is all I get when I try to open Thunderbird--none of the usual email boxes, calendar, contact screens at all. I cancel the setup and get an option to continue and potentially not have access to some features, or exit. I click on exit and a new screen opens with file tabs for email, calendar, address book, and tasks. Looks nice, but there is no data brought forward on any of these tabs, and email looks like it has not been set up (no surprise--no inbox or preview box).

Any ideas on how to complete his setup and bring the data in, or on how to go back to the previous release and uninstall the new version?

Second post trying to figure out what is going on.

I'm getting the notification that I need to update Firefox, so I click the "download" button which takes me to "https://www.mozilla.org/en-US/firefox/new/?reason=manual-update", I select the "Download Firefox" button and after a few seconds I get a "Secure Connection Failed" message.

Usually I can just open Chrome and download the Firefox installer but today I'm getting an error stating that "download.mozilla.org" is using certificates from a different website.

Is the download site busted, or is this just a me issue?

Hello,

Moving from an older Ubuntu 18.04 machine where Firefox is limited to version 113 to a newer machine running Mint 22 where the current version is 134.

I know how to transfer the profiles but I could not find any information on compatibility.

Would I need to install other versions before 134 to handle any changes?

Thank you

How can I stop Thunderbird from displaying its own advertising/donation page on my browser when I open Thunderbird? It opens this page on my default browser, no matter which is chosen: https://www.thunderbird.net/en-US/thunderbird/128.0/whatsnew/?locale=en-US&version=128.6.1&channel=esr&oldversion=102.8.0 If the browser is not open, it will open it.

This is the result of trying to keep Thunderbird from automatically upgrading. In newer versions, the option to choose not to upgrade has digressed from difficult to not available. It did such an upgrade, so I de-installed and reinstalled my original version, only to have this issue.

I was very satisfied with my old version AND see no need for new any of the "features" or look. And, especially, once such a setting is made, don't want Thunderbird, or any other application or app, changing it back. This is a violation of privacy at best.

Worse yet, Thunderbird is attempting to penalize the customer for making a choice on their own computer by infecting the machine with nuisanceware.

Today I agreed to the update of Thunderbird. After the update all my data have been distroyed - no calender data have been shown nor my previouse emails nor my structure of emails worked as ususal. I safed a backup file (zif) from another PC to an external drive. Now it is not possible to import this file because the zip is to big and I get the order to unzip first. If I do this I get a long list of errors and nothing works. Please tell me how to solve the problem! Ralf