如何卸载删除火狐插件(Firefox Plugins)
插件不是扩展。
中文版
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手动卸载插件
如果找不到插件的卸载程序，可以用按照以下步骤手动卸载：
1.在地址栏内，输入 about:config，回车；
2.在过滤器那一栏输入 plugin.expose_full_path，就可以看到plugin.expose_full_path这个设置项；
3.双击这个设置项，将值由默认的fale改为true；
4.在地址栏输入 about:plugins，就会列出你目前安装并且启用的插件列表；如果你想卸载某个插件，务必先在工具-附加组件-插件中启用它；
5.每个插件名底下都有对应的路径（步骤3的设置就是为了显示这个路径），打开资源管理器找到插件对应文件；
6.将插件对应的文件重命名，比如Mozilla Default Plug-in对应的文件npnul32.dll，将它重命为Xnpnul32.dll;
刷新一下about:plugins页面，你会发现对应的插件已经被卸载了。
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重建插件配置文件
有时候你不能安装或者重新安装某个插件，重建插件配置文件可能就能解决这个问题，重建步骤：
1.打开配置文件夹，找到pluginreg.dat这个文件；
2.关闭firefox；
3.删除pluginreg.dat；
4.打开firefox，在地址栏内输入about:plugins,回车；
5.再打开配置文件夹你会发现一个新的pluginreg.dat。
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
英文原文
===============================================
Manually uninstalling a plugin
If you can't use an uninstaller program to remove a plugin, you can remove it manually:
1. In the Location bar, type about:config and press EnterReturn.
* The about:config "This might void your warranty!" warning page may appear. Click I'll be careful, I promise!, to continue to the about:config page.
2. Search for the preference: plugin.expose_full_path.
3. Double-click on the plugin.expose_full_path preference in the list to change the value to true.
4. Enter about:plugins into the Location bar to display the About Plugins page.
5. Each entry in the About Plugins page will have "File name:" followed by a path. Use Windows Explorer to navigateNavigate to the folder shown for the plugin you want to remove.
6. Rename the file to something other than its normal name - e.g. npswf32 becomes Xnpswf32
The plugin will be removed.
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Re-initializing the plugins database
In some cases, you may not be able to install or re-install a plugin. Re-initializing the plugins database may fix this problem:
1. Open your profile folder:
* (Firefox 3.0 and 3.5): See How to find your profile
1. (Firefox 3.6): At the top of the Firefox windowOn the menu bar, click on the Help menu and select Troubleshooting Information.... The Troubleshooting Information tab will open.
2. Under Application Basics, click on Open Containing FolderShow in Finder.
2. From the menu at the top of the Firefox windowbar, select FileFirefox and then select the ExitQuit FirefoxQuit menu item.
3. Delete the pluginreg.dat file.
4. Open Firefox
5. In the Location bar type about:plugins and press EnterReturn to bring up the Firefox plugins list.
转自： http://blog.sina.com.cn/s/blog_5d799d4d0100ocmx.html
中文版
===============================================
手动卸载插件
如果找不到插件的卸载程序，可以用按照以下步骤手动卸载：
1.在地址栏内，输入 about:config，回车；
2.在过滤器那一栏输入 plugin.expose_full_path，就可以看到plugin.expose_full_path这个设置项；
3.双击这个设置项，将值由默认的fale改为true；
4.在地址栏输入 about:plugins，就会列出你目前安装并且启用的插件列表；如果你想卸载某个插件，务必先在工具-附加组件-插件中启用它；
5.每个插件名底下都有对应的路径（步骤3的设置就是为了显示这个路径），打开资源管理器找到插件对应文件；
6.将插件对应的文件重命名，比如Mozilla Default Plug-in对应的文件npnul32.dll，将它重命为Xnpnul32.dll;
刷新一下about:plugins页面，你会发现对应的插件已经被卸载了。
--------------------------------------------------------------------------------------
重建插件配置文件
有时候你不能安装或者重新安装某个插件，重建插件配置文件可能就能解决这个问题，重建步骤：
1.打开配置文件夹，找到pluginreg.dat这个文件；
2.关闭firefox；
3.删除pluginreg.dat；
4.打开firefox，在地址栏内输入about:plugins,回车；
5.再打开配置文件夹你会发现一个新的pluginreg.dat。
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
英文原文
===============================================
Manually uninstalling a plugin
If you can't use an uninstaller program to remove a plugin, you can remove it manually:
1. In the Location bar, type about:config and press EnterReturn.
* The about:config "This might void your warranty!" warning page may appear. Click I'll be careful, I promise!, to continue to the about:config page.
2. Search for the preference: plugin.expose_full_path.
3. Double-click on the plugin.expose_full_path preference in the list to change the value to true.
4. Enter about:plugins into the Location bar to display the About Plugins page.
5. Each entry in the About Plugins page will have "File name:" followed by a path. Use Windows Explorer to navigateNavigate to the folder shown for the plugin you want to remove.
6. Rename the file to something other than its normal name - e.g. npswf32 becomes Xnpswf32
The plugin will be removed.
----------------------------------------------------------------------------------
Re-initializing the plugins database
In some cases, you may not be able to install or re-install a plugin. Re-initializing the plugins database may fix this problem:
1. Open your profile folder:
* (Firefox 3.0 and 3.5): See How to find your profile
1. (Firefox 3.6): At the top of the Firefox windowOn the menu bar, click on the Help menu and select Troubleshooting Information.... The Troubleshooting Information tab will open.
2. Under Application Basics, click on Open Containing FolderShow in Finder.
2. From the menu at the top of the Firefox windowbar, select FileFirefox and then select the ExitQuit FirefoxQuit menu item.
3. Delete the pluginreg.dat file.
4. Open Firefox
5. In the Location bar type about:plugins and press EnterReturn to bring up the Firefox plugins list.
转自： http://blog.sina.com.cn/s/blog_5d799d4d0100ocmx.html