Hi, Chrome and Firefox are different products with pro and cons for both. Can you access your tabs and click on them? Please pay attention is you have a custom theme, it may defer the behavior.

Users reported this in previous versions of Firefox when they had two displays with different resolutions. One one screen, Firefox tabs could be activated all the way to the top pixel, and on the other, the top pixel was dead. I don't recall whether there is a solution for this because it seems to be some kind of computation issue resizing the window between the different resolutions. Does that seem relevant to your setup?

@smorele: No I don't have a custom theme. I am aware that Chrome and Firefox are different products, this is simply an improvement request.

@jscher2000: No I don't have multiple monitors set-up.

Thanks.

I don't use Windows 10 normally, but I can look at a Windows PC later this week and see if it has that problem.