Comment 2 for bug 623646

Stealing this report as I have added this to my own extension, which uses the NPAPI replacement: see https://code.launchpad.net/~sidi/zeitgeist-datasources/chromium-native.

Please note you will need to adjust the authorised extensions in the JSON file of the host based on whatever extension id is given to you by Chromium when loading the extension. This problem should disappear once the extension is published and the host packaged for your distribution.