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I am running Supernova version 115.5.2 and have a strange situation (maybe it's normal) when opening it.

If I have received any emails for any account in a previous session, then when I open a new session, the folders for these accounts open expanded and other accounts that did not receive any emails, remain collapsed.

I know there are others who have various issues regarding all folders expanded or collapsed but in Thunderbird before Supernova, I always collapsed all my folders and opened a new session with everything collapsed.

So can anyone tell me how to set-up Supernova so that when I collapse all my folders at the end of a session, a new session will open with all the folders still collapsed?

Thanks.

Hello. Some time ago, empty folders appeared in the side panel of my account, I cannot delete them - how to delete them. Attached is an image with selected folders.

Could not find anything in add-ons, settings, or about:config. There is a topic on this site https://support.mozilla.org/en-US/questions/1086884 but I am not able to follow it because there is no add-on or plugin to enable or I cannot find it.

I am now using Outlook (imap). When I try to permanently delete a bunch of emails it deletes them and then I get a synchronizing inbox bar and the 1,000 or so emails come right back into my inbox. How do I avoid this if I am using Thunderbird?

Example: Have 9600 emails delete 2500 and notifies me that they will be permanently deleted but they never are. They just return a few minutes later. Thanks

Only in the last 24 hours,I cannot add Attachements to emails I downloaded Microsoft Iview & that change Preferences on a lot of Apps Below is a examaple of it,I have tried different PDF Readers & they all do the same If I Go To The actual Folder in D Drive,then they will all open ok Please assist Thank you Darryl.Smith

D:\SCAN DOCUMENTS\D & L Smith new Certified Id Documents 2023\ID Ds Passport 2023.pdf could not be opened, because the associated helper application does not exist. Change the association in your preferences.

Hello. I have a Zen Internet account set as my default account, but, when I go to write an email, the From address is based on my own domain barkas.co.uk, with the Zen address after it (see screenshot,) and I have to manually change it to my Zen email address from the dropdown address menu. Why is this and how do I stop it?