With Firefox now allowing you to open the browser with the same tabs it closed down with by default, I’ve been looking for a way to synchronise open tabs across 2 or more PCs. So that where ever I am, i can have the same set of open tabs. There’s a number of ways to share bookmarks across instances of the browser but not your current tab set, as opposed to the tabs you set as home. I want to be able to set it up once and that is it. No having to remember to click things, it just does the saving for me when I close.