echo "deb [signed-by=/etc/apt/keyrings/packages.mozilla.org.asc] https://packages.mozilla.org/apt mozilla main" | sudo tee -a /etc/apt/sources.list.d/mozilla.list > /dev/null

#配置 APT 优先使用 Mozilla 库中的包:

    echo '
    Package: *
    Pin: origin packages.mozilla.org
    Pin-Priority: 1000
    ' | sudo tee /etc/apt/preferences.d/mozilla

更新软件列表并安装 Firefox .deb 包:
sudo apt-get update && sudo apt-get install firefox

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