OneTab

OneTab allows me to continue hoarding tabs, but also make sure they aren't causing my browser to come to a standstill or get over-cluttered. When I send a group of tabs to OneTab, I try to make sure they represent a project or task I'm trying to accomplish instead of just blasting everything away. This makes it really easy to pick up a project if it comes back to the forefront of my tasks. Otherwise, if it ages there too long, I just get rid of the whole group.

As a chronic die hard multiple tabs opener, Onetab litteraly made my browser usage livable. It saved me several times, having hundreds and hundreds of tabs open and can't be simply closed. I use it daily.

The best tool when in a startup wearing 15 hats. You can have "tabs" of multiple websites related to focused topics all saved.

Essential if you switch between multiple work contexts. Saving Chrome memory usage doesn't hurt, too!

Great, free, and transparent. Would be even better if it had iCloud backup, and optionally a sync feature.