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Since updating to 141.0 64 bit today (Jul 22, 2025) my addon Filtaquilla is disabled.

I tried another attachment saver and the same thing happened. Okay, I'll revert back to previous version.

Can't do that without starting a new profile.

Sure glad I donated to Thunderbird last night.

I recently changed onto the new release channel by installing version 136. I now find that this new release channel appears to have installed version 138, but it is reported as a beta version. I do not want to use beta versions, as I am having a lot of problems with it, so how can I return to a stable release?

Can't get Thunderbird to open. Have had it for years and now I get a message that I must restart to complete the recent updates. I have restarted and also shut down a dozen times, yet Thunderbird would not open for a week now. I have in my email address book 700 correspondents, now I lost them. Yearning for your help, Thanks, Chaim

Over the last few months, sending and receiving emails has developed a problem with it taking ages. This isn't all the time, just occasionally, but it is often enough to be irritating. I never had this problem before. My pc uses Windows 7 - has an update to Thunderbird been produced that doen't like the old OS? Should I go back to an older version of Thunderbird? I have a similar problem (not working with Win 7) with other programs (eg Garmin), and I have to ignore notification of updates on them to keep them working. The older version of Garmin works fine with Win 7.

Please note I use Mailwasher before I start Thunderbird. Mailwasher allows me to see if there are any emails waiting for me on (I assume) my ISP's server. I can then delete those I dont want or are suspicious of, before they get on my pc. Having deleted those, I can then start Thunderbird, and I tell Thunderbird to download the remaining emails, not Thunderbird downloading automatically. I dont have any problems with Mailwasher itself, just the moving either way of emails

Thankyou for any help

Could someone please tell me what the latest version of Thunderbird is on the Release Update Channel? I am on version 139.0.2, and when I check for updates in the app, it says that Thunderbird is up-to-date. Is version 140.0 not going to be available on the Release Update Channel?

Hello, I have Mozilla Thunderbird version 128.12.0esr (32-bit) on a Windows 10 laptop On the Help/About Thunderbird it says update failed. I have clicked on download and have version 139.0.2 in my downloads folder. When I try to install it all goes well until I get a message "Your computer must be restarted to complete a previous uninstall of Thunderbird. Do you want to reboot now?

Yes No " I have rebooted several times now with the same results. What do I need to do to get the update Regards Peter Norris

1-can I get the newest update WITHOUT THE New Tab layout? Will all new updates automatically have it? 2-WHY DO YOU GUYS PRESUME THAT "ALL FOLKS" really want new looks... 3-IF IT AIN'T BROKE, DON'T FIX IT!!

Hi Guys,

Thunderbird version 128 is missing in the release page - https://www.thunderbird.net/en-US/thunderbird/releases/

Do look into this.

Regards, Asif

When I open Thunderbird Mail on my laptop the settings for updates is set to automatically update. I have to change it every time I start it up as it won't stay on check for updates but let me update! What is the problem?

Best regards, Vin

Hi,

Since your latest update I have to daily sign in into all my accounts again. Why? How can this be fixed?

Further how to deactivate updates as issues like this are too often.

Thank you< Tobias

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.

I have automatic updates disabled, for the last month or longer I have refused to update Firefox and kept dismissing the notice when I start up my Firefox. Yesterday when I opened Firefox it just updated itself automatically and without even asking if I want to download the update. I tried to find a way to contact support but all I can find is posting a question on here, so hopefully someone can help me with this question: Why did Firefox ignore my update settings and download and install an update I have been denying for weeks now, and how can I prevent it from happening again?

I am on windows 10

Greetings,

I recently updated to Thunderbird 140. After the update, I am unable to open .eml files by double clicking on them. I receive message window (attached image). If I do File->Open->SavedMessage I can successfully open the file. Please advise how I can get Thunderbird to open .eml files regardless of the instance of Thunderbird that originally created the file.

hi, I love supporting this independent browser - I know its not perfect but it does a great job of doing most things well.

However, and there is a big but. I can be in the middle of an investigation that requires sharing data to a new tab - on opening the tab I'm blocked from going further as Firefox needs to do an update! This is really infuriating. No update can be SO urgent that you stop me using the browser. This is the Microsoft mentality, and its wrong. Can you please investigate NOT forcing users to update their browser during session.

Matt.

I've been afraid to upgrade T-bird since 102 because last time, it changed the look and feel of my program. Honestly, I had a devil of a time getting panes reconfigured back to looking how I had it. After that, I turned off updating.

If it matters, I've got Classic view enabled (along with folder and message panes).

So to my question, if I update, will everything stay the same. Honestly, if it's going to change again, then I may stick with what's working. A friend is suggesting Betterbird, but I may just bite bullet and go to Gmail.

Does what I am asking make sense? I just don't want the layout to change based on what someone – who isn't me – thinks is better because I 'like' how I have it configured.

Many thanks!

I have windows 10. Last 3 or 4 months I have been getting notices from firefox for updates. Dismiss or install. When I install the update and at the some point log off the internet. The next time I log onto the internet the computer takes 5-10 minutes to load my home page. I assume this is because it is installing the update? Any way to speed this up? I'm thinking of disabling updates because of this problem. Thanks. Brian

How can you remove the regular reminder to update firefox to the newest version on macos that occurs when you tick "Check for updates but let you choose to install them"?

I am seeing on a Windows 7 unit that I can update to version 115.19.0esr, but I tried to use the Google search tool to check what that version is all about, and nothing. I have tried various ways on pages of what I think is Mozilla and nothing. Where can I find information about version 115.19.0esr? Or has your browser in my unit been taken over by a malware type situation and I am in danger?

BTW, when I clicked on the "What's New" link I saw nothing about that "New" version I am being asked to update to. Oh yes, I am constantly seeing that 'Please Update' window, too.

So if this is a true version from your company/orghanization, where is the information about it?

Just in case you wish to know, I do have about ten screenshots of all that I have been running into as I have tried to find information about 115.19.0esr. And if you are going to inform me that you don't support Windows 7 so you aren't showing any information about an update your browser keeps asking me to update to, I am going to send a letter to some regulator and explain that somebody is not doing there job properly. If you keep nagging me to update, then you should be informing as to why!