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https://testpilot.firefox.com/experiments/tab-center/ https://testpilot.firefox.com/experiments/tab-center/

• keehun 10y ago
  Tab Center has been my favorite tree-style tab add-on/plugin ever. None of the previous implementations come close to this for me.
  • hokkos 10y ago
    But this is not a tree, only a list, there is no nesting, they should really do an expert mode of tab center.
• Grue3 10y ago
  It's not a web extension and will not work with Firefox 57.