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Hello I have a problem where I get an error message "Unable to use profile when you launch an older version of Thunde...."

I noticed that I had 2 versions of the program installed, 115.16.0 and 128.3.3. Thunderbird must have been running okay up to v115.16.0 as I had to do manual installs from then to now. Initially there seemingly was no indication of any problem. I'm not sure how many manual installs I did as it was only 15th Oct that this issue started. I was on holidays for 6 weeks Thunderbird was unused between about 28th Aug to 15th October. So, my Thunderbird was running at 115.16.0. I tried to uninstall 115.15.0 but it said I had another version that needed to have the uninstall completed by rebooting the PC. I did that but 115.16.0 still remained. I uninstalled 128.3.3 successfully. 115.16 still wouldn't uninstall, so I used a program to cleanup all of this version. I reinstalled 128.3.3 and still get the same problem I started with. "Unable to use profile when you launch an older version of Thunde...."

How can I get Thunderbird running? Regards Alllan

I'm trying to reduce size of TB Profile folder (2.45GB) I observe that my TB Profile, Imap.Mail folder contains two folders for Yahoo.com, one of which I suspect is unnecessary.

- imap.mail.yahoo.com 27 MB

- imap.mail.yahoo-1.com 2.29 GB. This folder has the more recent "Date Modified" date.

Please see screenshot. No problems with TB operations.

Can one of these be deleted? Which one? How? (i.e., any re-naming involved?)

Thank You

Roger

I pressed download but I don't know what to do next. I signed up for the newsletter and gave a donation. I don't know where to find the app or how to complete the installation. Thank you.

I have ics file with 2 events and i want to import into existing calendar (the day of these events is empty) but it says modification_error. Calendar isn't read-only and file isn't broken (it import into new calendar fine)

Dear support/community, I'm a little confused on the support of 115 version of thunderbird. It has been kind of treated as a "esr" version, like below 115.16.0esr indicates.

https://archive.mozilla.org/pub/thunderbird/releases/115.16.0esr/

I know firefox is stopping update until end of 1Q 2025, and my assumption that applies to all Mac, Windows and Linux and till then firefox will get high/medium CVE patches if impacted --- is this the right assumption?

I'm not sure about the situation of thunderbird. while I intend to believe similar to firefox, also told that 115.16 is the last 115 version.

Thanks.

I have a working system. Using Thunderbird on Linux Mint MATE. I install on a new system and copy over the .thunderbird directory. Some accounts are working just fine, but two accounts have only new emails showing up. On the webmail interface, of course, these two accounts have only the new emails. But I do not understand the system well enough to work out why the old setup shows the old emails and does not match the webmail.

I'm using the latest edition of TB and have started coloring my folders. How do I color subfolders? Do I have to do each separately or is there a way of coloring all subfolders with the same color under a given folder? Thanks, Dave

I have installed Thu nderbird on my new Windows 11 Laptop. My old Accout has been installed just two files are missing Outlook Express Import and Drafts. How can I reactivate them. Thanks for your help Harald Schmadtke

I use Firefox and Thunderbird for Windows and Android, they are my favorites, now I have been struggling with problems in the Firefox browser for Windows 7 with the Logitech G560 sound. Firefox is the only browser that doesn't work with Logitech G560, all of the competition works, I've read articles with the same problem on Logitech that can't solve the problem, because the problem is the Firefox browser, only this one doesn't produce sound from YouTube, Spotify and more ... Test to detect the problem and resolve it by updating Firefox, don't come up with experimental solutions because they don't exist. I'm waiting for help, thank you.

I want to run Firefox Translation on a computer without access to the Internet. When I select Download languages for offline translation, where are the models saved? I want to save the models on a computer connected to internet and move them to the stand-alone computer without internet access.

bonjour, mon firefox ne démarre plus, ni en standart ni en administrateur. J'ai essayé une réinstallation, un dépannage, la compatibilité en vain. en mode administrateur il bloque sur la page des onglets, je ne peux en lancer aucun. merci Cordialement

Thunderbird on my laptop (Win10pro on an I-7 HP laptop) keeps freezing (not crashing) and after installing on my Android (Moto G7+) the app freezes every single time I try to read the QR code on my desktop. Arrrggghhhh, can anyone help? I'm an experience computer user and Thunderbird user for over 20 years and all my other software works fine on both Desktop and Android.