火狐快捷鍵_使用自定義鍵盤快捷鍵組合在Firefox中隱藏和顯示選項卡欄

火狐快捷鍵 There is no doubt that multiple tab browsing is a wonderful thing, but what if you want to conserve some vertical screen real-estate? Now you can hide and show the Tab Bar in Firefox as needed w

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