Just what I wanted
Very useful for certain websites that I use
The author very quickly assisted with a query that I had and a few minutes experimenting
I was able to fulfil my requirements - automatically open a previously written note
Thanks Saverio.

It has some keyboard focus issues sometimes (cursor keeps going to the start of the editor while you type), but the ability to associate the note with e.g. certain subdirectory trees of a site makes it perfect to keep notes between all pages in certain part of the site.

I absolutely love this add-on. Extremely well made. It would be neat if I could edit the text or UI color from the add-on toolbar. Awesome.

10/6 Thanks for the reply. I found a color I like. I keep having this issue though where the window flickers and it's not word-wrapping the text.

Nach diesem Tool hatte ich lange Zeit Ausschau gehalten. Ein Notizzettel der sich auf einer bestimmten Website einblendet, zu der ich mir einen Hinweis erstellt hatte. Top :)

my only feedback would be to allow different full-color sticky notes or drop-down menu notes.

For instance:
- For stickies: instead of the "tag" being cyan, the whole note is cyan
- For drop-down, when selecting cyan, the orange border/frame changes to cyan

Nice one. However when taking notes on websites that play video/audio material addon's window shuts down or a cursor of the fixed window resets to the initial position, which makes taking notes on youtube videos unconvenient.

Just did a Firefox refresh, not as traumatic as I thought it would be and looked for addons. When I found this addon I was delighted. It fills all my requirements and answers the other problems similar addons haven't addressed. I hope you enjoyed the coffee.

Thank you, finally a notes extension that works as it should! All that's missing is sync and it would be perfect

This is an addon that a lot more users would find useful to use, hopefully it will get known and get the popularity it deserves. The note features of it level up the browser, it works flawless and the developer is very active and responds fast to questions and requests in an amazing level. Thank you for this great addon!

This is really amazing! Settings for the notification with a green button for every circumstance and if set to open with page the notes popup opens with the respective tab: If there is no domain or page not it opens with global, if there is no page but domain note it opens with domain and if there is a page not it opens with that tab.
And it is compatible with Firefox for Android, if you use a Firefox release that allows to install add-ons from a personal collection.
I am honestly impressed.

Шикарное расширение, но есть недоработки:
1. Иногда заметка на странице существует, а индикатор (иконка расширения) не показывает этого - красный цвет. А иногда показывает - зеленого цвета. И приходится всегда, даже когда красного цвета, нажимать на иконку и проверять есть ли заметка на этой странице. Очень не удобно. (Исправлено)
2. При вводе текста на странице и нажатии перевода строки (Enter) происходит перевод строки и моментальное возвращение курсора в исходное положение - как будто были последовательно нажаты две клавиши "Enter" и "Стрелка влево (<-)". Очень не удобно. (Исправлено)
3. Очень не хватает автоматической синхронизации заметок. Я знаю, что об этом уже писали ранее, но я не могу не упомянуть этого.
В остальном расширение очень хорошее. Использую его очень часто.

UPD: всего за сутки разработчиков были исправлены 1 и 2 недоработки. Благодарю!

Excellent design + functionality. Donation sent!

I would like to be able to do two things:

1) format text of my notes (bold & italics would be enough), and

2) create colored highlights on the page itself (but I know that's complicated).

Good. Does what it says on the tin, without drama or complications. Much better than any of the alternatives I tried. Certainly one of the most useful add-ons for me, making Firefox much better to use.

If you could sync through the Firefox profile so that you have the same notes through different computers, it would be amazing. I just noticed that there's such an option in preferences, but it doesn't seem to be working for me.