bookmark all tabs of all open windows
I would like to make a bookmark file with all the tabs in all the open windows, organised by window. The final goal is to be able to open all Firefox windows with all their respective tabs in another browser, like Vivaldi; alternatively, to time stamp various such bookmark files, and open all the window with all their tabs I had open in Firefox, say, 8 months ago. Please have a look at the screenshot attached: it seems that the menu button Bookmarks → Bookmarks All Tabs makes bookmarks only of the tabs of the upper-most window. Thank you for any help.
Additional System Details
1password extension clip to DEVONthink Ghostery Tree style tab
- User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Firefox/68.0
In Firefox you would normally use a sessionstore file to have a list of all open tabs and windows.
You can use this tool to extract links from a sessionstore file.