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Can't imagine anyone being happier nowadays without tabs.

• simongr3dal 6y ago
  Presumably your application would just be creating new windows and your windowing system would take care of displaying it as either tabs or separate windows.
• wtallis 6y ago
  Did you ever use Firefox 1.0? It supported tabs.
• astura 6y ago
  Firefox has had tabs since it was in beta (and called Phoenix); It's the reason I started using it back then (~2002)
• forgotmypw17 6y ago
  Tabs were always there since before it was even called Firefox.