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Hi, I have a brand new macbook air and wanted to install my preferred browser, Firefox, but after installation Firefox will not launch. I’ve tried to install version 133.0.3 and when I try to launch it, Firefox always freezes and show 'Firefox (not responding)'. I have restarted my mac, reinstalled Sequoia OS, uninstalled/redownloaded/reinstalled, and I cannot get Firefox to launch, ever. Safari (built in) and DuckDuckGo (new install) browser both work.

Please let me know what I can try to do to get Firefox working.

About a month ago I began the process of upgrading from W10 to W11. In the process, several problems happened. One of the problems was with Firefox. After reading and trying many suggestions from the Mozilla site, as well as several other sites, and having no success, I posted my problem on this Mozilla support site and hope that there was someone who could help. There was. After several days of exchanging messages (suggestions, instructions and results - mostly about Profile), Firefox returned.

The other major problem is Thunderbird. I have downloaded a current version (128.5.2esr). I have run it twice and, each time, email was downloaded. So that part seems to be working. What doesn’t appear are the settings I have used and message folders I have created over several years. I suspect that the problems are Profile related.

Starting from Help in the Thunderbird menu, then Troubleshooting Information, then Application Basics, I see Profile Folder. On that line is a button labeled Open Folder followed by (Local Drive). I click Open Folder and File Explorer opens to a folder named ab3xaztm.default-esr. It shows that the folder contains 59 items, including 10 subfolders. All files and folders show a December date.

Following the path C:\Users\rsuth\AppData\Roaming\Thunderbird\Profiles\, in addition to ab3x…, there is another folder nlys3gkl.default that contains only 1 file, times.json.

Because of my earlier struggle – and eventual win – with the Firefox problem, I think that the Thunderbird problem might also be fixed in a similar way: Profile.

Slightly before the upgrading from W10 to W11, I made a copy of my Thunderbird folder. I think if I replace the currently active Thunderbird folder with the one I have saved, my Thunderbird problem may be over. However, I’m not certain that will happen and I’m not certain about the specific steps to take to make the replacement. (With my Firefox issue, there were a couple of small important steps I had to take to make it work, and those steps were explained to me by the person who helped me with my Firefox problem. So, after all these words, can someone point me in the direction to solve my Thunderbird problem?

Thanks for reading.

I'm trying to transfer the Profile folder from my current laptop to my new one. I followed the directions here: https://support.mozilla.org/en-US/kb/moving-thunderbird-data-to-a-new-computer but must've made a mistake because none of my many Local folders have populated Thunderbird in the new laptop. Also, the GB size, number of files and number of folders show to be very different on the new laptop vs. the current one.

I'm inclined to just start over but have a question. Can I simply delete the contents of the "Thunderbird" folder under "Roaming" in my new laptop and try again to paste into it? Or are there some items in that folder that were inserted when I first downloaded TB into my new laptop so that doing a complete deletion would remove those and they wouldn't be replaced when I try pasting again? If so, how do I get around that?

Thanks very much for your help.

I had a computer crash recently and my calendar won't save a new entry (and has no entries). How do I remove and reinstall (refresh) the calendar? Thanks for any help. My Thunderbird is 128.4.4esr (64-bit). My OS is Ubuntu 24.04.1

I have to use ctrl - many time to see everything on my screen. I promise, I didn't change anything, just updated. I'm not super literate about things like this and my IT husband has gone onto his next adventure. I'm hoping for a simple fix. Thanks.

Bonjour à tous J'ai essayé de toute sorte de manière de me servir de Thunderbird pour envoyer des photos avec le (menu contextuel, envoyer vers le destinataire) Il fonctionne avec Windows 10. Je peux faire fonctionner Microsoft Outlook, mais pas Thunderbird avec Windows 11 pourquoi? J'ai fait toutes les paramètres mise par défaut, ainsi que mail to.

Toutes mes choses sont dans Thunderbird et je l'aime plus que tout (connait plus). J'aimerais beaucoup si vous pourriez m'aider, je vous en remercie à l'avance.

Back in September, 2024, Microsoft Outlook no longer accepted my long-used login information via Thunderbird. I could still log in to https://outlook.live.com/owa/?realm=hotmail.com from the Firefox browser. I tried adjusting Account Settings (e.g. Server Name, Server Type [POP], Security/Authentication, etc. to no avail. I downloaded the current version of Thunderbird (128?) and tried installing per directions found here. Tried using the Flatpak path. The direct Command Line path yielded the same result.

dave@Sequimer:~$ sudo flatpak install flathub org.mozilla.Thunderbird [sudo] password for dave: Skipping: org.mozilla.Thunderbird/x86_64/stable is already installed

On edit: Did what I hoping to avoid and deleted Thunderbird and all of the Thunderbird related files in the Linux home directory. Then installed a current version of Thunderbird and imported email stuff from an earlier backup. It works but now I have two renditions of Thunderbird running simultaneously.

I use a Firefox browser and a few days ago I got a message on my screen saying I wouldn't be able to use it after January 2025. I didn't read the message properly so I can't give any details.

I have looked at system requirements to update my current version but as I will explain it is not possible for me to update: I am using an old iMac - OS X version 10.9.5 The firefox version is 78.15.0esr (64-bit)

To update I need to have at least Mac OS 10.12 or later.

I am not computer literate so I cannot update my Operating System so I won't be able to download a more recent version of Firefox browser.

• Will my current version still work after January (but with no new security updates)?
• or will I not be able to use my Firefox browser at all?

Hi Ive just installed macOS Sequoia and Firefox is really slow and showing a refreshing spining icon with a few tabs open, this never happened before the update. Is there anything I can do?