“Dialogue box” appearing when right clicking a service overlaps with Windows,

“Dialogue box” appearing when right clicking a service overlaps with Windows,

We observed that the “Dialogue box” appearing when right clicking a service overlaps with Windows. We are using Firefox.

/customer/servlet/servlet.FileDownload?file=00P6000000elzkFEAQ

/customer/servlet/servlet.FileDownload?file=00P6000000eltjDEAQ

What might be the issue her?

Thank you

Best

Jamal