Hi Gilberto A Rivera,

From the link you provided, I don't have any issue scrolling (zoom in & zoom out/scrollbar) with the mouse. You can try to go and adjust your mouse wheel settings: https://www.computerhope.com/issues/ch000981.htm#:~:text=Adjust%20mouse%20wheel%20settings&text=You%20must%20use%20the%20%22Category,one%20page%20at%20a%20time.

Hope it helps you!

@Dropa, no add on that could possibly be interfering with. @Zmingonng, this is a brand new mouse and computer. Was having no trouble with this website on Chrome, only with FF.

I've looked back at my original post. What I've meant by scrolling, was actually using the scroll wheel to zomm the map in or out.

The problem does not manifest itself using the same hardware on Chrome.

I found the solution.

In Firefox, go to Extensions and Themes, since I'm using a Logitech MX3 Mouse for Mac, I had to disable: "Logitech Setpoint", used by the mouse for smooth scrolling.

Problem solved.

If you have the mouse pointer on the map then rotating the wheel will works as zooming the map. If the mouse pointer is on the right sidebar then you should be able to scroll this pane with the mouse wheel.

Isn't that working for you ?

I know that. It wasn't. Now that I've disabled an extension for the mouse, it is working as it should.

Mark it as resolved please.