I miss the most a sync between devices.
Also, I'd add a separated field for a title.

I am wondering if it is possible to enable the copy / paste functions inside of the sidebar. It does not seem to work for Firefox either by shortcut keys or mouse context menus (using Mac OS)

Sangat membantu dan simpel untuk digunakan. Terbaik memang!

Es una pena que quitasen la sincronización a mi me gustaba mucho.

Great :)

同样的问题，请不要占用现在的垂直标签栏，请移到另外一边栏进行管理，好吗？

great

Excelente! Mais prático do que abrir o bloco de notas do sistema.

Really underbaked. Could be so good, but isn't. Why no syncing?

please change the app icon. it looks terrible on toolbar.

on screenshot it shows sync! but, there's no sync actually. notes are not syncing!!!

No more update for this addon?

"lets you take notes on web pages."

No it does not... The notes are not related to the webpages at all... It's just a notes sidebar.