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On 25 October 2020 I updated Thunderbird on my MacOS Mojave (v10.14.6) machine, from 68.12.1 to 78.4.0. I have 5 different IMAP accounts I access via Thunderbird. The 2 that are gmail "under the hood" are working fine. The 3 that are Earthlink are not. Specifically:

Given accounts User1 (the oldest), User2, and User3, all with Server = imap.earthlink.net, Port = 143, Outgoing = smtpauth@earthlink.net, Security = STARTTLS & Encrypted Password

• When I click on the Inbox for User1, the message "User@earthlink.net: Checking mail server capabilities ..." appears in the bar at the bottom of the Thunderbird window but never goes away.

 For User2 and User3, that message appeared earlier today but is no longer appearing.  Oops, it will re-appear if I click on the Inbox and then click the "Get Messages" button.  For User2, if I go to a different Inbox and then return, the message is gone; for User3, if I go to a different Inbox and then return, the message is still there.

• When I click on the Inbox for User1, I can see the list of emails that were in the Inbox when I upgraded, and whether they are unread (bold type) or read, but I cannot view the actual message when I click on any of them. • When I click on the Inbox for User2 or User3, I can see the list of emails that were in the Inbox when I upgraded, and whether they are unread (bold type) or read. If I click on the message I can view it; if it was unread (bold) it changes to read (plain font). • The Inboxes for User1, User2, and User3 show no new emails since I upgraded. I have been online all day, although not in Thunderbird all day. I have logged onto Earthlink webmail as User1 and verified that mail has arrived today and that I can read it. • I have used Thunderbird to send email from User1 to a non-Earthlink account and successfully received it at that other account.

What's going on? Has anyone else seen this? solved it?

1. Yahoo is or has closed my account because I chose not to upgrade to their new system. How do I change my Firefox account using my new email ([email]@wavecable.com) ? 2. for some time I have been unable to print articles from the internet using Firefox while I can with Microsoft Explorer. I prefer to stay with Firefox except for this one inconvenience. I mentioned this to my printer support (Brother Printer) and they said that they could not help me and that I would need to go to Firefox Support.

My old Yahoo may not be working so please use my new email (xxx @wavecable.com)

Thank you very much for your help

Dick Nehls

Updated version of Firefox as recommended. ALL history, bookmarks and downloads are missing! How do I restore to MacBook. I tried steps listed but nothing has worked. Very frustrated

I had most updated versions of Mozilla Firefox in my windows 10 machine. last two days, it is not opening. Tried several recommendations from Community page, Help documents and youtube solutions but nothing seems to be working.

• Tried re-installing firefox, by downloading the latest version from Mozilla, after deleting the profile folder (%APPDATA%)
• Tried removing the cache files / temp files etc., and restarted as well, still did not work.

I do not have admin permission hence could not open in windows safe mode.

Any suggestion please?, Appreciate your input!

Здравствуйте. Столкнулся с проблемой синхронизации. Оба устройства подключены к одному аккаунту, закладки и облачные закладки синхронизируются, а логинов и паролей на мобильном устройстве нету "логины не найдены" Между разными ПС устройствами - все работает Пробовал и пере подключать аккаунт и переустанавливать Firefox В чем может быть проблема?