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I am s-o-o-o gd tired of this happening. Every time it does, I spend days-to-weeks trying to recover a working edition of Tbird. Why can't you build updates that don't lock a customer out of his/her own emails.

I don't know how or when, exactly, it happened. I use Win11pro which is up to date. I have one Tbird install on dropbox so I can access all my emails from any of four different machines. It worked yesterday (on two machines at any rate, I didn't use the others). Today, no matter which machine I log into, I get an message stating that I ' you have launched an older version of Thunderbird. A newer version of Thunderbird may have made changes to your profile which are no longer compatible with this older version. Use this profile only with that newer version, or create a new profile for this installation of Thunderbird. Creating a new profile requires setting up your accounts, calendars and ad-ons again. For more information . . .italic text Then it gives an 'exit' button and a 'create new profile' button.

1) I did NOT install a new version of Thunderbird.

2) Insofar as I can tell, the version on Dropbox has not changed so nothing should have altered the profile.

3) I do NOT want to create a new profile -- I have years of data in calendars and emails across multiple accounts.

4) the 'more information' link doesn't work.

Why do you periodically do this to me, Mo? Why can't you make changes that don't destroy a person's account(s), profiles or data? Why do you put up such a useless message without a utility to restore things to the way they should be?

5) I have been searching the internet for hours and I don't see a solution to this problem.

I had a huge problem with M Outlook. In addition it has locked me out of my Office 365 package and I'm not getting help or support. Luckily I had backup completed before the problem. I changed to Thunderbird (using pop3), which I find very good. The back up is approx 8 GB but with many duplicates which I need to clean up. When I click import it seems to limit the file size to 2 GB. How can I import this backup file into Thunderbird to enable me to access the emails, clean up the many many duplicates and reduce the size? I await help, Thanks in advance

I have Thunderbird installed on 3 separate computers in 3 separate locations. When will it be possible that the 3 installations are all completely identical, i.e. they're clones of each other? I would like the folders, filters and address books, for example, alterable by one one installation to update the other two. (Working like, say LastPass)? At the the moment, any filter or folder not present on one of the installations causes emails to end up al over the place!

I lost my password and had to remove and readded my Suddenlink email, which autodeletes emails past a date and size. I want to have it sync with my local folder inbox only so i can ignore the autodelete off of suddenlinks inbox

I had to replace my hard drive and now have Win 11. I still have my Thunderbird account, but I cannot access the 3000+ emails in my folders. My Thunderbird started from scratch, no history, no files. How do I access and download my saved emails and folders from before the hard drive replacement? The Geek Squad couldn't help. Keep it simple, I'm not a techie.

I am getting an error that "you have launched an older version of Thunderbird" Every time I try to open my email. I was using the latest beta version up to three days ago and the program got corrupted for some reason. I did try to install the latest beat online beat 2 .

Thanks, Al

I ask for help with thunderbird and you send me this: If you need help with Mozilla Thunderbird, you can visit the Thunderbird Support Forum or the Thunderbird Support Articles. which brings me right back here. You are worse than windows.

I have bought a new Mac Air and I want to get all the email address off of Thunderbird on my desktop and put them on Thunderbird on the laptop. I have had to move most of my files and items by Flash drive because when I migrated it the first time, I overloaded the laptop and had to start all over. So what file can I move from the library to get these on my new laptop?

Hello Dear People,

I have been using Thunderbird to great satisfaction. When my computer of 10 1/2 years died, I started to use old laptop of my son who made me the second user. I d/l Thunderbird on my account and it all went well till a few days ago. No Thunderbird. I d/l again, profile not found/inaccessible. I did see advice here from last year, looking for the profile under Users, app data, roaming etc. but to no avail. There is no profile.

How to solve this problem? Also after d/l the set-up, the thumbnail looks strange, like half of the image as shown in the picture. I tried d/l a few times, same result. I was very content with the program. I want Thunderbird back!

Thank you for your advice! Dorith

Hi,

I've tried migrating Thunderbird data and folder structure from a Windows 10 PC to a new Mac Sonoma 14.1.2 following the instructions from https://support.mozilla.org/en-US/kb/moving-thunderbird-data-to-a-new-computer and encountered problems.

I copied the Thunderbird folder from the PC onto a USB drive and then moved the file to the Library folder on the Mac.

Importing seemed to go well, but when I opened Thunderbird on the Mac only the inbox (and its messages) were there. All other folders and their contents were missing.

What did I do wrong and what do I need to do to migrate all folders/sub folders and their data?

Thanks, Richard

I have installed the newest version of Thunderbird (115.5.2.) and can not open my profile. The Error message: A newer version of Thunderbird may have made changes to your profile which are no longer compatible with this older version. Use this profile only with that newer version, or create a new profile for this installation of Thunderbird. Creating a new profile requires setting up your accounts, calendars and add-ons again

But i have the newset version installed.

I have long used multirow bookmark toolbar extension to give me 4 rows of bookmarks across the top of my Firefox window on Windows 10. After updating to this latest version, the extension is gone. Any mention of it in about:config is gone. I don't know if it ever was mentioned in userChrome.css but it's not there either. It's as though it never existed. WTH?

Can anyone suggest how to get a multirow display of my toolbar bookmarks? Thanks in advance.

On a related rant: This is why I hate upgrading Firefox. Something useful and common sense always breaks. I'm going to open a separate question to figure out how to get the cursor focus back into the Google search box when I open a new tab using Google as the home page. None of the previous solutions is working with this version. This break in basic functionality has happened after many different upgrades of Firefox and I am frankly sick of fixing the same ridiculous problem over and over.

Hi, I have three different university emails that I was hoping to add to Thunderbird, and I can't login to any of them. Two are Outlook, and one is Gmail. When I try to login with any of them, it says the password is incorrect, but I've verified with at least one of them that the password definitely is correct and I don't see how it could be wrong for the others. I was able to login to my regular Gmail via Thunderbird, but can't login to these ones. A little help, please?

I have Thunderbird on two PCs. Thunderbird stopped working on my older PC, Lenovo Z40, Windows 10. I uninstalled Thunderbird on that PC and tried to reinstall. I have downloaded the set up file, but when I open it tells me I need a Microsoft safe app and sends me to Edge browser. I looked at help website but can't see how to overcome this step to get to what is described on the Tunderbird UTube video. I have downloaded the Thunderbird set up file using Edge, Chrome and Firefox browsers. Same problem each time. Thanks

I was told I had to change my gmail account to whatever system you have now. I believe I have taken all the necessary steps, but would like to know how I access the emails I had on the old gmail account.

I have a few questions about the storage space used by Firefox v60.00 on Android 6.0.

Here is a picture of the storage space used up by Firefox on my phone

Cache has been cleared.

Data however is using up a large amount of space (1.3GB).

uBlock origin version 1.16.6 is the only plugin/addon I have installed.

I don't have any downloads.

By comparison Chrome browser on my phone takes up less than 100MB of storage space.

Questions

What is a normal clean install size for firefox on Android ?

What is deleted if I clear the 1.3GB of Data? Will my bookmarks be deleted. Will uBlock origin be deleted (my only installed plugin).

How can I backup my bookmarks to a file?

How do I determine what is using up all this storage space in Firefox, and prevent it from happening again?

Thanks for your responses.