Doesn't work at all

Not working on FF Version 61.0.1 (64-bit), installed with a wet paint icon but cannot do anything, would like to have this.
Finally get it to work but sluggish and cannot change color of pen, will be great if you can program it to use Surface pen eraser

Tried to open it but immediately crashed and now will not open.

Great and very useful tool, can you make it work on firefox pages (eg add-on reviews-click and it doesnt even show the menu)?

FF is SO annoying blocking its authorised extensions from its own pages!!!!

Give us a link on your download page to spam bugzilla about this nonsense!

Feature request - would be great if each tool remembered it's last setting? (colour, size, transparency)

Usually works awesome, just a few small bugs.

This extension is great, but there is only one thing that should be add, a X button to close the tool bar

pen coords trouble.

There's one major issue I have with this plug-in: the cursor off-set on main tool.
Using this with an active digitizer pen / touchscreen makes the whole thing unusable.

For me the main drawing tool (pencil) draws about 20 pixels below where I draw with the actual digitizer pen or have my actual browser's cursor (can be seen via "Show location of pointed when I press CTRL key").
Strangely enough, line tools work perfectly and have no offset. For mouse users this is probably not a noticeable issue, but for digital pen users this pretty much ruins the whole thing.

Also sampling tool doesn't work correctly and eraser tool is offset as well.

Regardless I'm giving this app 4/5 because this is not an issue for many users and because it's just a bit short from being the #1 notes app for digitizers. Hopefully developers will fix offset issues. I'll change to five stars if main tool's cursor offset is fixed.

Great work. Color picker is not working. Also, it is triggering the permissions to read canvas on each page. Can we possibly live without trying to read the canvas? The extension seems to work well without.

Awesome extension, works as intended! For future updates could you please add different eraser sizes and a mouse cursor graphic to the eraser, it can be hard to find the eraser cursor sometimes, also make it so that when you click on the extension button you revert back to your normal web browser mouse pointer? Thanks in advance!

η ζωγραφικη

Installed in Fx 52.3.0 x86_64 for Ubuntu 14.04.5 . Not only did this not work, but it brought up my browser console and threw a bunch of errors.

Un-installed.

It is good and very good idea overall but on some sites you will face problem using this as it can crash a site or force you to reload it..

really cool have been looking for a tool like this! keep tweaking and taking suggestions, nearly top-notch!

It works, but try to add some hotkeys