银河麒麟（KylinOS）常用软件安装
Firefox
可通过 snap 安装，也可下载 deb 安装包
https://launchpad.net/~mozillateam/+archive/ubuntu/ppa/+packages
Chromium 浏览器
https://launchpad.net/ubuntu/bionic/arm64/chromium-codecs-ffmpeg-extra
https://launchpad.net/ubuntu/bionic/arm64/chromium-browser