Rated 5 out of 5 stars
I just installed it and already see the usefullness of this addin!
You write: "saved local nodes can be viewed in the sidebar,but how?
Thanks for the feedback. It reminds me of updating the screenshots and HOWTO.
The menu item "Open/close Notes Sidebar" is below "Save to Local Notes" in the popup menu in searching view. If you are using SeaMonkey or older version of FF, please check Developer's Comments->KNOWN ISSUE.
Any further questions are more than welcome. Please email to "Support E-mail" (if you can't find the menu item or the sidebar still doesn't open) or, even better, add another review :) Thanks.