TYPO3 Core

When clicking on the "maximize" button of the Element Browser, the window goes to the top of the page, but when you are at the middle of a page (like editing the RTE of a news)
you cannot see the top of the maximized window, so it's not possible to close or minimize it. I figured out that the scroll bar for the main page is deactivated while the element browser window is maximized, which doesn't allow to use the mouse to see it, but you can do it using Page Up and Page Down on the keyboard.

I attached a screenshot showing how it becomes right after clicking on the maximize button.

We tested this on Chrome and Firefox and it happens on both.