Good tip from “DifferentDan” on the Realmac customer forum, posted back in November:
I saw on macOS Tahoe 26.1, Apple finally added an option in the
Column View settings to automatically right size all columns
individually and that setting would persist, but I don’t really
like Liquid Glass (yet) so I haven’t updated to Tahoe.Looks like someone found a workaround however for those that are
still on Sequoia. Just open up Terminal on your Mac, copy in the
below, and press return.defaults write com.apple.finder _FXEnableColumnAutoSizing -bool YES; killall Finder
Marcel Bresink’s TinkerTool is a great free app for adjusting hidden preferences using a proper GUI, and it turns out TinkerTool has exposed this hidden Finder preference for a few years now. You learn something every day. I enabled this a few days ago on MacOS 15 Sequoia, and it seems exactly like the implementation Apple has exposed in the Finder’s View Options window in Tahoe, which I wrote about Friday. No better, no worse.
