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I'm trying to get the Enterprise Release Notes for Firefox 148 and 149. They seem to be the only ones missing from 141 to 151 inclusive. It appears the URL for the notes is in the format https://support.mozilla.org/en-US/kb/firefox-enterprise-###-release-notes/, where ### is the version. For these two versions, I get a "Page Not Found" error.

I have tried finding them through the Firefox Release Calendar (https://whattrainisitnow.com/calendar/). If you click on the link to expand previous releases and then click on a release version number, the page that comes up has links to the three different versions of release notes. Enterprise shows a link for the two missing versions in the same format as I have noted above.

I have also tried https://support.mozilla.org/en-US/products/firefox-enterprise/whats-new-firefox-enterprise and it lists quite a few versions but 148 and 149 are missing in action.

My Thunderbird, from Debian is:

140.13.0esr

I've often wondered what the point of 'extended support release' (I think) really means. It sounds retrograde. Should I switch/upgrade?

Hi!

I installed the Thunderbird app via Play Store a while ago. I have the F-Droid app on my phone, too. I now got a notification from F-Droid offering me an update for Thunderbird. I'm far from a pro. I would have expected an app installed via Play store to only be connected to and updated via Play Store. Is this all safe and okay? There is no Thunderbird update available in Google Play.

Thank you for your help, please let me know if you need any phone specs or version numbers!

Rosina

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

I recent got the new thunderbird update. However i also loss all my saved messages and local folders and my contact email addresses. I really need that information for some IRS imformation. Plus u also get nothong but a bid Donate now message in the body of thunderbird. I have already donated several times. I need my information now. I am quite upset about this loss is data and email addresses.

Good day, thank you in advance for your help.

I have two questions: 1. Which Thunderbird version is better than ESR? Could you share your opinion?

It's faster and it applies all changes more quickly, that's how it seems right now.

If there are still 32-bit and 64-bit versions available simultaneously, I'll test it sometime. I have no idea what kind of channel that would be.

Problem question:

In Thunderbird 64-bit POP3, the font changes to blue for every second email, including in replies. Can you tell me how to display every email in black? Only the second email in the inbox is displayed in blue, so the text isn't blue when receiving emails. When composing, everything looks black. What do I need to change?

Question 2: Regardless of whether it's 32-bit, 64-bit, or any channel, I see updates to the latest version, and in the program itself, there's an option to view older updates, but everything is white. I only see white and nothing else. Is this intentional? I can't see the update, but it's still current?

``` Thanks for the information

Apparently Windows 11 won't upgrade from v23H2 to 24H2 because the very nice cpu (and system) don't support SSE4.2 or PopCnt instructions. While v23H2 won't get updates after November of 2025, I tend to use operating systems WAY beyond no more updates without problems, and only upgrade when browsers no longer update and support some websites, notably banking and credit card sites, for example.

Any way to get at least a rough idea of when/how long Firefox will continue to update on Windows 11 23H2 so I can plan ahead? Usually it's a year or 2 or more after Microsoft stops updating the OS.

Thanks.

Hello, I reported this problem and you replied with a solution and that was to downgrade to version 142. My question is: Then what ? Will I be stuck with version 142 for years or is Thunderbird working on a solution to this problem because presently updating to any version such as 144 only continues to erase local folder contents. Thank you for your support Douglas Noades

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.

I let my Firefox update not even an hour ago. I went to right click and copy some text and the menu is now BLANK expect for "Search Google". I copy and paste in the browser A LOT. I need this fixed. Next time you guys push out an update I'm going to ignore it.

Currently, my Firefox Browser continues operating under Windows 10, without a known Windows 11, operating Browser update correction! Is there a solution to this problem?

I contacted Mozilla Support and was issued a ticket ID that is 438455!

Your help is greatly appreciated, Thanks.

It is not a problem, but I would like to know why did my Firefox app (phone) change its logo and name to "Firefox Preview". Was it me that accidentally activated it?

Thanks!

I've been using Firefox for a while now, and I heard there's a new update available. I'm curious about what new features or improvements have been added in this latest version. Is there a summary of the key changes? Also, are there any significant performance enhancements or security updates that I should be aware of? I want to make sure I'm taking full advantage of the latest capabilities. Any insights would be appreciated! Let's discuss more about this!