centos7 firefox 安装flash

在官网下载flash的tar包

https://get.adobe.com/flashplayer/?spm=a2h0j.8191423.movie_player.5~5~5~8~A

在下载tar包的目录执行

[root@zhangxs Downloads]# rpm -ivh adobe-release-x86_64-1.0-1.noarch.rpm
warning: adobe-release-x86_64-1.0-1.noarch.rpm: Header V3 DSA/SHA1 Signature, key ID f6777c67: NOKEY
Preparing...                          ################################# [100%]
    package adobe-release-x86_64-1.0-1.noarch is already installed
[root@zhangxs Downloads]# yum install flash-plugin

再执行

[root@zhangxs Downloads]# yum install flash-plugin
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyun.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
Resolving Dependencies

安装完成

Installing:
 flash-plugin                      x86_64                      25.0.0.127-release                       adobe-linux-x86_64                      8.6 M

Transaction Summary
======================================================================================================================================================
Install  1 Package

Total download size: 8.6 M
Installed size: 20 M
Is this ok [y/d/N]: y
Downloading packages:
warning: /var/cache/yum/x86_64/7/adobe-linux-x86_64/packages/flash-player-npapi-25.0.0.127-release.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID f6777c67: NOKEY
Public key for flash-player-npapi-25.0.0.127-release.x86_64.rpm is not installed
flash-player-npapi-25.0.0.127-release.x86_64.rpm                                                                               | 8.6 MB  00:11:36     
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-adobe-linux
Importing GPG key 0xF6777C67:
 Userid     : "Adobe Systems Incorporated (Linux RPM Signing Key) <secure@adobe.com>"
 Fingerprint: 78a8 75e9 7f09 06bd 6355 73fa 3a69 bd24 f677 7c67
 Package    : adobe-release-x86_64-1.0-1.noarch (installed)
 From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-adobe-linux
Is this ok [y/N]: y
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : flash-plugin-25.0.0.127-release.x86_64                                                                                             1/1 
  Verifying  : flash-plugin-25.0.0.127-release.x86_64                                                                                             1/1 

Installed:
  flash-plugin.x86_64 0:25.0.0.127-release                                                                                                            

Complete!

重起浏览器即可