I discovered this issue as part of checking that all plug-ins in Firefox is up to date (thanks to Adobe’s security mess). The VLC plug-in was listed as outdated so I updated VLC from their web site – the 64-bit version as that is what I use.

Checking Firefox again (plugincheck) I noticed VLC was still listed as outdated with the version unchanged. Thanks to Google I found an article that shows how to get the path of all Firefox plug-ins (about:plugins). This gave me the path C:\Program Files (x86)\VideoLAN\VLC\npvlc.dll . Fortunately VLC provides a plain zip/7zip download of their apps (http://www.videolan.org/vlc/download-windows.html) which you can use to simply copy the files over the old version.

Well, that is one way to skin a… fix a plug-in I mean… 🙂