Trapezoidal tabs

A type of browser UI that makes tabs look trapezoidal. Used in Chrome and Chromium until version 67. Trapezoidal tabs came back to a fork of Chromium called Supermium.

Trapezoidal tabs

Developer(s)	Chromium Devs and Google
Initial release	Chrome 1.0 (15 years ago. September, 2nd 2008.)
Final release	Chrome 68 / (5 years ago) July 24, 2018

Supermium 122 with trapezoidal tabs on Windows XP.

Japanese Chrome with trapezoidal tabs

History of trapezoidal tabs

It first started with Chromium and Chrome that came out in the year 2008, marking the start of trapezoidal tabs. The tabs became less "aero fruitiger-like" due to modernisation and oversimplification in the mid-2010s (circa 2014-2018), and in the year 2018, the trapezoidal tabs got replaced with rounded tabs, marking the end of trapezoidal tabs. But due to a chromium fork called Supermium, trapezoidal tabs came back.