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Was trying to find a solution to new emails not showing but unread number increasing but no applicable articles were coming up. But after hours of trying solutions, I think the answer was to mark some older emails that were marked unread as read. Then the latest couple of days of emails started coming through. This happened when migrating Cox.net emails to Yahoo and then modifying Thunderbird account settings to retrieve them. This email account has over 14K emails from 2014 and later showing in Yahoo Inbox and somehow the Thunderbird Inbox is showing 26K, probably some duplicates, although I have been using the extension "Remove Duplicate Messages". In Yahoo, I made more folders for several older years and moved emails from the Yahoo main Inbox to those various years to cut the size of the Inbox. Any other suggestions would be great for similar situations.

How can I troubleshoot and resolve common issues with my Mozilla Firefox browser using the resources available on the Mozilla Support website?"

Is there a way to search ALL emails for everything received in the last 1 day, last 3 days etc, whether or not the folder is subscribed?

I just had a big problem finding particular new emails. The reason was that that somehow the folder had got unsubscribed. This shocked me because I hadn't even realised I needed to subscribe to folders to search them.

In a practical sense the problem is therefore fully solved and all I need to do is to make sure I'm subscribed to everything. But I find it disturbing that anything could undermine the very simple search of what emails I received today. So I'd like to understand if there is indeed any way to see all of today's emails without any exception.

The search I was using was "Age in days in less than 2" and I was doing this both with "Run search on server" ticked and unticked. The emails are all there on the server, so surely there must be a way to see them in a raw naked state before they are sorted into folders? I guess the global search is able to do just that, but as far as I can see it doesn't seem able to search by any kind of date range (can filter but not search).

I've been noticing apparent duplicate messages within my unified folders inbox on my desktop recently.

Looking further I notice that one of my accounts has 'INBOX' as one of its subfolders which is where the problem appears to stem from. When I look at that account in isolation (ie not in unified folders) I can still see the inbox as a subfolder.

The subfolder 'INBOX' appears to be a duplicate of the account's main inbox (it contains the same number of emails), which may account for the appearance of duplicates.

At a guess this is probably related to inadvertent moving of folders. I find that when trying to use the scroll bar (to scroll down the subfolder list), if the mouse strays slightly to the left it will pick up a subfolder and move it unintentionally. This can cause all sorts of problems with disappearing emails and the folder structures showing differently on different computers.

In this case the duplicate email problem only happens on my desktop. On my laptop I can still see a subfolder named 'INBOX' but it shows as empty and I don't see the duplicate emails in unified folders.

It would be really useful if Mozilla could introduce a 'confirm folder move' feature as that would eradicate inadvertent moves.

How do I resolve the apparent duplicate emails on my desktop? I am somewhat reticent to delete the subfolder 'INBOX' for fear of the potential consequences. . .

Hi there,

I had 755 emails in a label in one of my two gmail accounts. I linked by gmail accounts in thunderbird and selected 'copy' of the label from one account to the other. However, only 359 have transferred. I've tried again and nothing has changed. Its made a big mess of both my gmail accounts.