You asked, we built it: Firefox tab groups are here  | The Mozilla Blog
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What happens when 4,500 people ask for the same feature? At Firefox, we build it. Tab groups have long been the most requested idea on Mozilla Connect –
  • Damage@feddit.it
    8·
    7 hours ago

    Ctrl+Q terminates the whole program at once and you don’t lose any windows.

    Oh btw, just like Ctrl+shift+t reopens closed tabs, so Ctrl+shift+n reopens whole windows, with all tabs.