For tabs, IMHO the one world-changing plugin is Tree Style Tab [1]. The auto-grouping is already quite useful; on top, a little manual dragging and/or customiza

For tabs, IMHO the one world-changing plugin is Tree Style Tab [1]. The auto-grouping is already quite useful; on top, a little manual dragging and/or customization can go a long way. The lack of parity in the Chrome world pushed me further away from Chrome too (as a pleasant side effect). [1]: https://addons.mozilla.org/en-US/firefox/addon/tree-style-tab/ https://addons.mozilla.org/en-US/firefox/addon/tree-style-ta...