On Firefox version 66+ (not tested before), if the StickyTableHeaders-Table in on top of the page and has a thead tag, after leaving the sticky header table, the browser continues to scroll by it self until the bottom of the page and "stays" there, no more scrolling up possible.
Here is a jsfiddle to reproduce this: https://jsfiddle.net/vLx4z3n5/1/
On Firefox version 66+ (not tested before), if the StickyTableHeaders-Table in on top of the page and has a thead tag, after leaving the sticky header table, the browser continues to scroll by it self until the bottom of the page and "stays" there, no more scrolling up possible.
Here is a jsfiddle to reproduce this: https://jsfiddle.net/vLx4z3n5/1/