This Firefox add-on arranges tabs in a vertical rather than horizontal fashion. It is heavily inspired by and borrows ideas from the excellent Tree Style Tab add-on. Note:This add-on is intentionally very minimalistic. It may feature support for grouping later (possibly using Panorama Tab Groups). But mainly the idea is to show tabs vertically.
![Vertical Tabs :: Add-ons for Firefox](https://cdn-ak-scissors.b.st-hatena.com/image/square/621cf29a01b679bebd3205f452ea6350c616415f/height=288;version=1;width=512/https%3A%2F%2Faddons.cdn.mozilla.net%2Fuser-media%2Fpreviews%2Ffull%2F43%2F43974.png%3Fmodified%3D1530208753)