Save my tabs! от Salvo Ventura

Why this tool

I wanted a simple and easy way to dump lots of open tabs to a folder, so that I can reopen them all at a later time.
Background

Anyone doing online research ends up eventually with a lot of content open across multiple tabs. As it usually happens, many of these tabs are kept open just as a placeholder for review, which may not happen right away. If you cannot keep your browser open forever, or if you have multiple research projects going on at the same time, it can be convenient to just dump the current tabs on a bookmark folder, which makes it easy to resume the research activity at a later time. In fact, you can use the Open All in Tabs option on the folder to reopen all tabs.