Sehr rudimentär.

This Add-On corrupted my Bookmarks. I highly recommend 'NOT' to use it. You should also note that it was last updated 2 years ago (Sep 17, 2020).

Ok

needs to be developed more, if there was more options and a way to import the html files back in then this would be 10 stars.

I like having the convenience of the sidebar to take notes while on a website. However, it is TREMENDOUSLY LAGGY. Not sure why, given it is a very bare-bones extension. Using any kind of formatting (Title/Heading fonts, bolding, using italics, etc.) seems to be the main cause of lag, even if you aren't extensively using those tools. Plus, when I click off of a note onto a webpage, then back onto the note in a specific place, the text cursor instead jumps to where it last was before I clicked off. I find this rather irritating, especially when doing lots of copy/pasting.

great extension. I would like Mozzila to continue its development.

Dark theme needs some tune up (tested on Windows): some fields remain light. Also it would be great to have an option to change fonts. :)
And yes, the other reviewers are right, search is a must!

Very handy. I only wish i could save different notes for different sites and have each pop up automatically.

best f**** app ever. the only way to take notes. seriously.

It doesn't have sync.

It seems to be a single page of notes with no way to add a note by page, website or global. No way to search or filter the notes in any way. A bit useless really.