It's crazy to me that Chrome still doesn't support any real equivalent to this; it's 2022 and Chrome (AFAICT) still insists on shoving every single tab end-to-end at the top, squishing them into tiny unclickable slivers, like some absolute fucking maniac. Even Edge gets this right by supporting vertical tabs (albeit with far less sophistication than TST), and it was supposed to be a cold day in Hell before I ever gave a Microsoft-developed web browser any sort of praise.