I love how OneTab works, and it was something I used very frequently. But one day, not sure why exactly my chrome profile folder (osx mac) got corrupted. I cannot give technical details about it really, but not a single one of the chrome addons I had worked any longer. And I tried to recover the tab sessions but was unsuccessful.

If there is a feature OneTab is missing, it's to sync your tabs/sessions to a certain location. Or at least that's a feature I'd really appreciate!