从14.04升级到16.04后，chromium无法看视频，显示"Couldn't load plugin"
安装pepperflashplugin-nonfree报错
Unpacking pepperflashplugin-nonfree (1.8.2ubuntu1) over (1.8.2ubuntu1) ...
Setting up pepperflashplugin-nonfree (1.8.2ubuntu1) ...
WARNING: W: The repository 'http://dl.google.com/linux/chrome/deb stable Release' does not have a Release file.
E: Failed to fetch http://dl.google.com/linux/chrome/deb/d ... 4/Packages Connection failed
E: Some index files failed to download. They have been ignored, or old ones used instead.
E: No packages found
E: No packages found
E: No packages found
E: No packages found
E: No packages found
E: No packages found
dpkg-deb: error: --extract needs a target directory.
Perhaps you should be using dpkg --install ?

Type dpkg-deb --help for help about manipulating *.deb files;
Type dpkg --help for help about installing and deinstalling packages.

打开“设置”——“软件与更新”——“其他软件”，勾选“Canonical Partners"，关闭窗口，等待更新完毕，然后

其实我是点击下面这个页面https://wiki.ubuntu.com/Chromium/Getting-Partner-Flash中的第一个链接apt://adobe-flashplugin 安装的。
这个链接好神奇噢，于是我专门打开了相关的 wiki 页面学习了一下。https://help.ubuntu.com/community/AptURL

1. 猜測 你的位址 無法跟 http://dl.google.com/ 連上線

2. http://packages.ubuntu.com/xenial/peppe ... in-nonfree
Package: pepperflashplugin-nonfree (1.8.2ubuntu1) [multiverse]
應該可以 直接安裝 (來自 multiverse)

3. 也可以安裝 套件 adobe-flashplugin (就不必安裝 pepperflashplugin-nonfree)
viewtopic.php?p=3161900#p3161900

我用浏览器可以打开https://dl.google.com/linux/chrome/deb/dists/stable/main/binary-amd64/Packages，但用的是https
安装adobeflash没问题，可是这样firefox也能用flash（firefox的flash问题太多了）

直接用chrome吧

可以單獨針對 firefox 禁用 flash