linux中Firefox浏览器flash 崩溃问题解决办法

这一篇介绍一种 Linux 系统下 flash 崩溃的解决办法。

环境如下：

操作系统：openSUSE 13.2 32 位
浏览器：Firefox 34 版本
状况：凡使用 flash 的页面均出现 Adobe Flash 插件已崩溃。
尝试 Chrome 浏览器，同样存在问题：
Shockwave Flash has crashed.
排查步骤如下：
打开 Firefox 附加组件页面，检查 flash 相关插件的安装情况，如下图：

我们能看到两个版本的 flash 插件：

Shockwave Flash 15.0.0.239
Shockwave Flash 11.2.202.411

两个插件的情况是：

两个都设置为 active，则 Flash 肯定崩溃
只设置一个为 active，则页面总是提示要开启 Flash
所以我估计是两个版本冲突的问题1。而据我所知，flash 在 Linux 系统下的最新版本只更新到 11.2.202.4242。
使用 zypper search 命令检查系统下安装的 flash 相关软件：

$ zypper search flash

输出结果如下：

 S | Name                              | Summary                                                  | Type      
--+-----------------------------------+----------------------------------------------------------+------------
  | Adobe Flash Player                | Preferences for Adobe Flash Player                       | application
  | FlashPlayer                       | Flash Standalone Player                                  | application
  | btcflash                          | Firmware flash utility for BTC DRW1008 DVD+/-RW recorder | package   
i | chromium-pepper-flash             | Chromium Flash player plugin                             | package   
  | chromium-pepper-flash             | Chromium Flash player plugin                             | srcpackage
  | chromium-pepper-flash-debugsource | Debug sources for package chromium-pepper-flash          | package   
i | flash-player                      | Adobe Flash Plugin and Standalone Player                 | package   
  | flash-player                      | Adobe Flash Plugin and Standalone Player                 | srcpackage
  | flash-player-gnome                | Adobe Flash Plugin and Standalone Player Settings        | package   
i | flash-player-kde4                 | Adobe Flash Plugin and Standalone Player Settings        | package   
  | flashrom                          | A universal flash programming utility                    | package   
  | flashrom                          | A universal flash programming utility                    | srcpackage
i | pullin-flash-player               | Placeholder for Adobe Flash PlugIn                       | package   
  | pullin-flash-player               | Placeholder for Adobe Flash PlugIn                       | srcpackage
  | texlive-flashcards                | A class for typesetting flashcards                       | package   
  | texlive-flashcards                | A class for typesetting flashcards                       | srcpackage
  | texlive-flashcards-doc            | Documentation for texlive-flashcards                     | package   
  | texlive-flashmovie                | Directly embed flash movies into PDF files               | package   
  | texlive-flashmovie                | Directly embed flash movies into PDF files               | srcpackage
  | texlive-flashmovie-doc            | Documentation for texlive-flashmovie                     | package   
view rawflash hosted with ❤ by GitHub

其中 chromium-pepper-flash 比较可疑。

移除 chromium-pepper-flash：

$ sudo zypper rm chromium-pepper-flash

弹出提示如下：

The following 2 packages are going to be REMOVED: chromium-pepper-flash freshplayerplugin
The following package is going to be upgraded: flash-player
1 package to upgrade, 2 to remove. Overall download size: 11.6 MiB. Already cached: 0 B After the operation, 13.9 MiB will be freed. Continue? [y/n/p/? shows all options] (y): y (Use arrows or pgUp/pgDown keys to scroll the text by lines or pages.)

提示里说，chromium-pepper-flash 和 freshplayerplugin 将被移除，并且会升级 flash-player。
执行完以上步骤后，重启 Firefox，Flash 已可用。