The first bad revision is: changeset: 591369:1f37c31422e2 user: Kirk Steuber <ksteuber@mozilla.com> date: Thu Nov 14 00:17:01 2019 +0000 summary: Bug 1588142 - about:preferences - migrate the root xul:window element to an html:html element r=Gijs,bgrins
Bug 1597210 Comment 2 Edit History
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``` The first bad revision is: changeset: 591369:1f37c31422e2 user: Kirk Steuber <ksteuber@mozilla.com> date: Thu Nov 14 00:17:01 2019 +0000 summary: Bug 1588142 - about:preferences - migrate the root xul:window element to an html:html element r=Gijs,bgrins ```