▽Latest topics - outsider reflex ●03/27 20:47 Look back on the history of Tree Style Tab until the performance improvement at version 4.0 - Mar 26, 2024(日本語版はこちら)I recently released version 4.0 of Tree Style Tab (TST) add-on, which provides vertical and indented tab bar UI for Firefox.The significant change in this version is the performance