re :Using the config editor, I set mailnews.default_view_flags to "0" (unthreaded). (See 1st screenshot.)

Screenshot does not show : 'mailnews.default_view_flags' to "0" - it is set to 1 It's the one at the bottom of the list in the image you posted. But 'mailnews.default_news_view_flags' does show it is set to "0"

It seems you have not set the required 'mailnews.default_view_flags to "0" So please repeat the process below

• Settings > General
• Scroll to bottom
• click on 'Config Editor' button - It opens in a new tab
• In search type: default_view
• You will see this line: mailnews.default_view_flags - It will have a numerical value of 1
• click on the 'pencil' icon on the right to allow an edit.
• Remove the number 1 and type in a zero 0
• click on the 'tick' icon to save your settings.

You will now have: mailnews.default_view_flags - It will have a numerical value of 0 This will now mean any new folders you create, they will not have threading by default.

I have created some images which will help you to see what is required before you do it and help you step by step all the way.

I'm confused why you say that "Screenshot does not show : 'mailnews.default_view_flags' to "0" - it is set to 1". I just checked the screenshot and my accounts setting in the config editor and it IS set to 0. Please clarify.

Thanks for your help.

I'm confused why you say that "Screenshot does not show : 'mailnews.default_view_flags' to "0" - it is set to 1". I just checked the screenshot and my accounts setting in the config editor and it IS set to 0. Please clarify. Thanks for your help.

OK - lets try again - you are not looking at the 'mailnews.default_view_flags' preference and your image is very clearly saying you have altered some things, but not the one you need to alter.

I have copied the image you posted and display it below. I said look at the last item in the displayed list - so I have put a red outline around the last item displayed in your image. It says: 'mailnews.default_view_flags' = 1 It is not set using bold font so means you have not altered it. It is still using the default = 1. There is also no reset to default icon on the far right. You need to set it to 0.

However, you have edited 'mailnews.default_news_view_flags' (3rd item in list) because that is set to 0. It is in bold font and has a reset to default icon on far right, so I know it is not using the default, it has been altered to use 0.

Thanks for clarifying. I changed the correct setting and the test folder I created was unthreaded.

Appreciate your prompt and clear response.