My firefox has suffered the problem for quite a time and several versions have the same problem. When I launch the firefox from the taskbar, the window opens, but closes soon, and then reopens again. However, the firefox window is not focused. I have to click the firefox window to refocus it. A gif figure is attached for illustration. Currently firefox is my default browser. I tried to solve it by using save mode, but it does not work. Then I refresh firefox. This time it works. The problem is gone. However, when I restart window 10, the problem happens again. I have addons: ublock origin, zotero, firegesture, and star-button in url.