I installed this extension and find it very useful because it allows me to display in a scrollable menu all my favorites.
But I can not see favicons.
Some experienced user could change the extension to make it fully compatible with Dragon.
(I know that Bookmarks Menu allows you to use the service provided by getfavicon.appspot.com to show favicons and that Dragon works well selecting this option, but I want to avoid others to know what are my bookmarks)
Try disabling Do not allow websites to know where you came from (suppress HTTP Referrer header) if you have it enabled.
Options, Under the hood, Privacy.
This quite often solves issues with extensions.
I think this is a problem with chromium doesn’t allow extensions to access chrome://favicon as stated here: 11854 - chromium - An open-source project to help move the web forward. - Monorail
So your only option for now is to use getfavicon.appspot.com if you want to display the favicon.