copies and pastes all urls of open tabs inclusive history in structured and well defined form to and from the clipboard.Copy All Urls | Firefox Add-ons | Mozilla Corporation
ok this didn't work with the current firefox.
Copies the URLs of all open tabs. Puts 'Copy Tab URLs' item in right click menu of tabs and Edit main menu. Useful for bibliographies, quickly sending someone a list of pages to view etc. Can now open tabs from previously copied list.Tab URL Copier | Firefox Add-ons | Mozilla Corporation
this then maybe?