STR: Copy-paste chrome://browser/content/browser.xhtml in the address-bar A "tab within a tab" thing will open Right Click on the main tab-bar -> Customize Toolbar The customization tab will open. Close if by mouse middle-click. AR: Crash Crash report : https://crash-stats.mozilla.org/report/index/5d9f4457-15d3-4d06-9638-ae8c60240421 https://crash-stats.mozilla.org/report/index/f43048b5-de73-458f-ac50-840660240421#tab-bugzilla
Bug 1892593 Comment 1 Edit History
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STR: Copy-paste chrome://browser/content/browser.xhtml in the address-bar A "tab within a tab" thing will open Right Click on the main tab-bar -> Customize Toolbar The customization tab will open. Close it by clicking the red "x" button. AR: Crash Crash report : https://crash-stats.mozilla.org/report/index/5d9f4457-15d3-4d06-9638-ae8c60240421 https://crash-stats.mozilla.org/report/index/f43048b5-de73-458f-ac50-840660240421#tab-bugzilla