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I just migrated my Thunderbird from my old MacBook to my new Mac Mini. I tried following the official instructions and the instructions in the linked thread, but I experienced the same problem the other users did— that Thunderbird, on the new Mac, would act as if it was setting up a new account, even after replacing the entire Thunderbird folder in the user's Library folder. With some investigation, I was able to detect how to fix the migration, though I can't tell you why Thunderbird behaves this way.

Here are the instructions I followed: [https://support.mozilla.org/en-US/que.../1397228]

The process of copying the old Thunderbird is correctly described. However, there is still some funny business on the receiving end.

What I determined was that Thunderbird, for whatever reason, wasn't reading the information in the profiles.ini and installs.ini in a way that launched the migrated installation. Instead, it still created a new installation and a new profile and overlaid those on top of the information in the migrated files, making the newly created profile the default and ignoring the migrated profile when launching.

In order to correct this, I needed to manually edit the profiles.ini and installs.ini file (in a simple text editor) to use the NEW installation but substituting in my MIGRATED profile for the newly created one.

I'm sorry I didn't take screen shots before deleting the files, but the important thing is to edit both files so the both are using the NEWLY CREATED installation ID but that both files only reference the OLD profile ID (deleting all other mentions of the newly created profile and deleting mentions of the old installation ID. This is just a copy/paste operation.

I've attached screenshots of mockups of what my new profiles.ini and installs.ini look like. The important thing is that both have the NEWLY CREATED installation ID (not the one copied from the old Mac) with the OLD profile ID.

Hi, I singed into mozilla and now i can't get rid of the bookmarks bar on the left side of my screen, which takes up too much space. it is already sitting up on the top right and i don't need it to be on the left as well.also bitwarden is up at the top and that's where i want it to be and it now sits on the left as well,

I recently re-installed Windows 10. When I installed TB on the new version, both address and (home) calendar data were missing. Not concerned with address as most were probably obsolete anyway. From the information on this forum I opened my TB profile and found the SQLITE files from calendar-data and also the same from my Windows.old file (see image).

Is simply replacing the 4 SQLITE files from .old into the Profiles likely to restore the calendar data?

The files in the backup folder in .old has only SQLITE file - local.v22.sqlite which was last modified in 2021.

Thanks.

Thunderbird on my wife's windows 10 pc opens but hangs trying to communicate with ATT/Yahoo server. When none of the obvious troubleshooting steps helped, I thought the Profile might be corrupted. I recovered only the 2 day-old Profile folder from my Retrospect backup set, renamed the current Profile folder, and pasted the older Profile in its place. Thunderbird then started, logged into the server, and downloaded emails. However, nothing about Firefox looked familiar - no the local options/folders, etc. were there. How do I get the original Thunderbird look and feel back for her (very important)?

Hi, Somehow I managed to turn off automatic updates or something, because I am have been way out of date. I just checked and it my laptop or mozilla support is telling me I just updated to 113 two weeks ago. Well, that seemed to be the latest update I could get. Now I have just seen that there is mozilla up to something like 123 or 132 or some such. I got the 113 from google store, and I am still getting messages that my laptop is out of date and I need to update it. Can someone please tell me where to get the latest updates and how to go about installing them safely, or how I can turn on automatic updates...I am using Linux mint and that is probably also out of date, but seems to work.

Hello, I'm currently using a Macbook Air, Early 2014, that still works perfectly fine for my needs. But it runs with OS X 10.9.5 and Firefox 78.15.0esr, that unfortunately can no longer be updated. That wouldn't be a problem to me since I do a very limited use of the computer, but now I'm getting the message "Your Firefox may start to have problems on January 14, 2025 since updates are not available for this OS". What should I do if I still want to use this device with Firefox to browse the internet? If it is impossible to keep using Firefox, any suggestions for an alternative browser that may still work? Safari is no longer an option. Thanks a lot for any and all replies

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.