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I noticed when I went to check for updates the Fire Fox Browser is, Windows MSIX Package Mozilla, MSIX 1.0 143.0.1 (64 bit). What is this and why? Do I need to uninstall this version of Fire Fox and reinstall a new one? If so, how do I do that without loosing all my data. Thanks for your help!

Jon Spears

An old forum describes how to sync calendars in Thunderbird. Here is an easy solution - In the left-hand pane of your calendar page, right-click your calendar name/ export calendar - into a removable device. In your other computer - Tools/import/ import from a file/ choose to import calendar - easy!

Using TB 141.0 MS Word 11 Too many wrong videos, too many old explanations. It's August 2025. Please, I'm not a computer wiz. Just a home novice. OK with specific directions. How to export my Gmail contacts list and import it to my TB contacts. I have tried basic gmail export...but should it be "google .csv", " or what? I don't think I have Outlook loaded anymore on windows 11. If you could help by actually sending me instructions that I will follow direct. ie: Sign into Gmail>click on contact file to be exported>export contacts and click "google .csv" (or the correct choice there)..then what? I've been trying and it wants me to save to a file...but how? And which file? I know it's an effort on your part, but I will print and save going forward. Thanks so much. LS in AZ.

I have used Thunderbird for years. I am on the esr update channel, 140.3.1 esr, and it says it is up to date. I just learned that there is another update channel, called "release". My Norton Internet Security program tells me that Thunderbird is out of date, and that the latest version is 143.0.1. Maybe it is confused because of the two update channels? Why are two different configurations maintained? Is there a reason that I should switch to the other one? Thanks in advance for any clarification.

When browsing, I sometimes (more often than not) get a Secure Connection Failed message. The Try Again tab clears the problem sometimes (not that often). This problem has just started happening in the last week, during which I have not made changes to any settings in Firefox. This problem does not exist using other search engines for the same site that I am trying to access, and I note that I also get this same failure when trying to access some Firefox webpages. Is there a fix to this other than contacting the web site owner, which I doubt is the cause of the problem, or for ease and simplicity should I just change to another search engine that does not have the problem?

I established a new email address in my existing Thunderbird platform. It only configures an "Inbox" folder and a "Trash" folder. I can not add a "Sent" folder (or "Draft" or "Archives", etc.). I tried deleting the account and re-establishing it, but that did not work. I did notice that emails sent from the new account are being saved in my "Local" account folder's "Sent" folder.

I have also gone into "Account Settings" for the new email account to make sure the software was properly configured with where to store sent messages and drafts, but the setting reverst back to the "Local Folders," presumably because there is no "Sent" folder in the proper account.

Please Help!!!

I want to close one of my email accounts but it is the one to which Thunderbird sends me emails, such as info about updates etc. I don't want to close the account and then find I get no information from Thunderbird. How can I change the email address that you use for me?

My Spectrum password was changed and now I cannot get direct access to TB. For some reason TB is not linking up with Spectrum password. I get a popup panel saying "Login to server Mail.TWC.Com with username jomar159@hvc.rr.com failed" Retry Enter New password Cancel I have 2 accounts on TB 1 is wmarks1 and the other is jomar159@hvc.rr.com HELP

I can't open https://english.ahram.org.eg and https://gate.ahram.org.eg/ Someone knows why? Maybe it has something to do with the last update. I think I could open them some time ago. Thanks!

My windows 10 PC died. I copied the the profiles folder from the old appdata/roaming/Thunderbird to the new Win11 PC, but TB does not pick it up, asking to create a new account "John Doe". Any ideas? Best, K.