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It download the .crx file from novell-moonlight- and then went to


and drag and drop the file on the chrome windows opened in that address and the following message appear

Apps, extensions, and users scripts cannot be added from this website

with an "OK" button and nothing more.

I read something about "ExtensionInstallSources", but not know how configure it to install extensions from a local directory. Any idea? I'm on Ubuntu 12.04 64bit

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Click on developer mode checkbox – Tachyons Feb 13 '13 at 13:56
A more complete answer that tracks recent changes is at userscripts - How to install a private user script in Chrome 21+? - Super User – nealmcb Aug 29 '14 at 1:20
up vote 14 down vote accepted

This is a known issue.

Download the .crx file. Drag and drop the downloaded novell-moonlight- file into Google chrome browser.

If you get any error mentioning "Apps extensions and user scripts cannot be added from this website", open chrome://chrome/extensions/ in a new tab and now repeat the step 1

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Thanks, I just restart my PC and works first time, not need to open a new tab for second time. Maybe the issue was related to a recently Chrome update, after witch I not restart Chrome neither my PC. – gsi-frank Feb 13 '13 at 14:39
It also works in OS X. Thanks. – skywinder Jul 10 '14 at 11:02

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