The extension is fantastic — smooth and clean!
It would be great if you could adjust a couple of things:

Ctrl + Alt + Z is used to show the sidebar in Firefox, which triggers Undo in the extension.

When I exit the extension and open it again, the drawings are not saved (actually, when I undo changes, they reappear). I think it would be better if they appeared right after I open the extension again, because I can accidentally press Escape and lose my drawings.

Add the possibility to change keyboard shortcuts. It would be nice to change the Redo shortcut from Ctrl + Y to Ctrl + Shift + Z.

Best browser drawing app I've used so far.
And I've used more than a handful.
Works great with pen and tablet.

Хорошо работает, помогает в учёбе. Спасибо разработчику)

It works fine, thanks for the effort, but it’s kinda annoying when it asks for corrections every time before being shut down, could you make that optional please?