Help us understand the problem. What is going on with this article?

Firefoxの複数タブを閉じるときの確認メッセージを切る

More than 1 year has passed since last update.

↓これを出さないようにする方法
image.png

1.アドレスバーにabout:config

2.検索欄にwarnoncloseothertabs

3.ダブルクリックして値をtrueからfalseにする

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