When I click on a tab at this link to close it: https://www.lairdconnect.com/resources/white-papers/why-choose-cellular-your-wireless-solution?utm_source=Electronic%20Design&utm_medium=site%20skin&utm_campaign=Cellular&utm_content=October a new tab is created every time! I found the only way top get out of this situation is to close and restart Firefox. Why is this?