If you are looking for an extension to copy all the URLs in the open tabs you have in Firefox, there is only one choice you have. Copy All URLs does the job and it does it well.
After installing – all you need to do is right click on any web site, then pick Copy All URLs from the menu. From there you can copy all the URLs for the open tabs, or paste them. Simple enough, right?
After copying the URLs into any text area or document of your choice they will come out as URL, then title, URL, then title, URL.. well you get the idea. This extension could come in really handy if you were wanting to send somebody a list of links or wanted a good way to start a super list on your own blog of some of your favorite web sites.
Be sure to pick it up over at the Mozilla Addons site, and let me know if you find any other copy and pasting tools you enjoy.