On a long page, there's a transparent box going across the page with an X on it

Just tried it and while it was awesome to easily take a screenshot, I can’t send it to a customer as planned because there’s a line through the middle of it that looks like a transparent box with an X on the side…it goes right through some text i have so very annoying.

If you have a way to upload or share the screenshot with your tech team, let me know and I’m happy to share it with your mozilla team.