According to the list of command line options it is possible to open websites automatically in different tabs. However not from a saved bookmarks folders. Rather you will have to give the url manually in the command line

1. Create a shortcut on desktop say First Launch or whatever suits you
2. In the command line give the following command

                            firefox -new-tab news.google.com news.yahoo.com www.nytimes.com

Replace news.google.com news.yahoo.com and so on with your news websites. For details on the available command line options please refer to the Wiki Page

The work around is as follows

1. At the end of day close all the open tabs and open the News folder.
2. Go to Settings > General > Startup and select the option Open previous windows and tabs. Please see the attached screenshot for more details. The option to be checked is circled in red.
3. Close the browser
4. Next day come and open the browser.

If you wish you can pair the above 4 steps with a separate firefox profile and create a profile shortcut on Windows Desktop. Only make sure that the first step given in the workaround is done without fail.

Hope this helps.

According to the list of command line options it is possible to open websites automatically in different tabs. However not from a saved bookmarks folders. Rather you will have to give the url manually in the command line

Ixian, thank you for your informative reply. Gmail/TBird is messing around with emails so I lost your response for a while.

I am using 115.9.1 Firefox ESR , and have worked partway through your solutions. I will report back in a few days with my results. Thanks again Chris

Note that you may have to use a CMD (or BAT) file with the start command in case you exceed the maximum length allowed in the target line of a desktop shortcut.