I have just switched to this add-on from another similar one that has let me down badly but this one is far better than the other one was when it worked! I can save far much more than the other one, I can organize items, make folders and keep text separate, edit items, move text and search, which is really great.
The pop-up box is great if you spot a spelling mistake in the text on-screen so you don't have to use a separate editor and the drag 'n' drop is better than having to copy and paste.
I am so glad I discovered this, I wish I'd found it before. I don't have to delete or lose something when I hit the 40 item limit!
All those permissions are needed for Clippings to function. Go to the following page to learn more about the meaning of those permissions, and why they are needed: http://aecreations.sourceforge.net/clippings/permissions.php