Manage Tabs by Domain

Tabs with the same domain as the active tab can be closed with CMD + Shift + X or gathered around the active tab with CMD + Shift + A. All same-domain tabs can be gathered with CMD + Shift + L. Alternatively, tabs can be managed by clicking on the extension's button and selecting Close, Gather, or Gather All.

You can edit the hotkeys that close or gather tabs at the bottom of chrome://extensions/