Sadly this project is no longer maintained. It's sync feature is no longer available(though the default note for new installs says it can be activated).
With a few more features(folders, tags, note colors, sync) this plugin could greatly improve firefox user experience.

This notes feature is a perfect example of Mozilla products. Half baked and Dated. Vivaldi says you couldn't even match a fraction of their power. How could this extension not have a dark mode?? How? It's time that the forks like Floorp produce a dedicated extension store for QUALITY extensions.

The only thing I hate in this is being forced to have it pinned in either the left or right side.
Not being able to have it as a small window below the icon at the top is awful to me.

Had the potential to be the best thing since long before the invention of sliced bread. Since Sync removed, useless, and a great big gaping hole left by its absence.

E muito bom ter esse bloco de notas, mas infelizmente ele não faz a sincronização das notas quando você loga em outro PC.

Works very good can rite notes. And save them as HTML. Very Very recommend this.

Literally perfect. Been using it for some time, it's exactly what I need. You can have multiple notes at once, you can do little formatting things like bolding and italicizing. It's great!

Simple but powerful. The only caveats:
- This extension is much too quick to convert symbols to markup -- e.g. if you are trying to jot down math notes (like "-2 * 3 = 6 * -1") the extension WILL italicize the "3 = 6" instead of leaving the asterisks untouched. Which is an "always on" behavior, you don't get any means to disable it.
- The extension is no longer actively maintained (so issues like the above are NOT going to be fixed ... ever).

I'd love to find a note-taking extension to serve as an updated version of this one, but until that day comes, this is still one of the best (despite its flaws).

Useful add but sometimes it deletes my notes

Project is abandoned. Doesn't sync.

Convenient addon but there are some flaws

Estuvo trabajando muy bien por muchos meses, pero de pronto dejo de funcionar, por mas que intente abrirla otra vez no funciono y acabe eliminando de mi navegador. Una verdadera lastima por que me era muy util y me incomodo muchísimos que dejara de funcionar por que tenia mucha información que necesitaba a la mano para poder trabajar. La volvi a instalar y me volovio a pasar lo mismo. Ya no la volvere a usar.

Project is abandoned. Doesn't sync.

Unfortunately, not maintained anymore. As per reviews below, not synchronized anymore. Its source code GitHub.com/mozilla/notes is now archived-only - the project is closed.

It probably used to synchronize/upload the notes to "Mozilla Private Network" (NOT the same as Mozilla, or any, Virtual Private Network). But that is gone, too.

Love this extension. Please return to updating it and have it be able to sync notes.

amazing