I am also having issues with the import, it wont work, nor the signing in with google to sync. I see no way to contact the developer or get support

So sad to read about the author passing away! This was really a great concept for an extension. It was working quite well, too, up to a point. It was so great that you could create notes for any webpage, and they were all saved in a central location, but each would show up on the web page you created it on. Even if you didn't have that web page open, if you clicked on a note, it would open the appropriate page in a new tab and display the note at its saved location in the page.

But as others have said this new version won't allow importing of notes from the original extension. Also, the original extension would not allow you to properly edit notes once you had finished with the initial creation.

I would pay a nominal fee to help support this if someone would pick it up, correct the bugs, and continue to maintain it. If this were done, even without any new features, it would be 5-star extension, easily.

Nice add-on that offers a lot of functions.

The description mentions cross-browser (!) syncing, but I guess the dev means cross-device syncing, since I cannot find the extension on the Chrome Web Store.
I didn't manage to login in with either my google or my facebook account to make it work anyway... The links appear to be dead. :(

Also I think the sidebar of the "Sticky Notes" (by Hiroki Kumamoto) add-on is more convenient than the window used by OurStickys.

I'll update my rating once I can login to sync my notes.

@Yoasif I couldn't find your contact details so writing you here...

Thanks for trying to help.
But your addon does not import the notes of the original addon. Besides, it seems not do correct the bugs either.
Here is my solution (for the original addon):

add this Userstyle for all websites, to restore the selectability of note contents:

.__myNoteMainWrapper * {
user-select:text !important;
}
(for example with the stylus addon; you could change it directly in the notes.css of the addon, but I don't know how, it would be great someone would takte this addon in capable hands).

There is no better addon for this task, tried them all.