Tab Manager is a brilliant piece of software/add-on, I use it continually for finding pages, searching for information and just leave useful tabs open and use it as an excellent search on my history.

I really push the software, at the moment over 2300 pages/tabs open in firefox, one window! Doing a search on all open tabs usually find the page I looking for and if wanted can open a group of tabs in another window and know all the pages open are probably useful, it's like an intelligent favourites from the browser history. Many thanks Markus and best wishes from the UK and other software developers.
Ian Bickerton CEng