If you would like to minimize the Lusha window to an icon, uncheck the "Auto Open" checkbox.
By doing so, the results window will not open automatically each time you visit a profile page.
Instead, only the Lusha icon will appear.
If contact details are found for a specific profile, a number will appear on the Lusha icon, indicating the number of contacts found.
Click on the icon to open the window.
One more thing!
You can move the Lusha icon (or window) to any location on the screen simply by dragging it with your mouse.