Comment 4 for bug 1633678

@Gunnar: This is known issue upstream and is harmless. The version shown is only used for plugin listing in the browser, the actual version used is the one provided by adobe-flashplugin. You can verify this at https://www.adobe.com/se/software/flash/about/

See https://github.com/i-rinat/freshplayerplugin/blob/master/doc/known-issues.md#flash-version-is-incorrect