XEAL, 1 year ago 10 max per window: addons.mozilla.org/en-US/firefox/addon/dustman/ And no duplicate tabs on a window: addons.mozilla.org/…/duplicate-tabs-closer/
10 max per window: addons.mozilla.org/en-US/firefox/addon/dustman/
And no duplicate tabs on a window: addons.mozilla.org/…/duplicate-tabs-closer/