Every time I open my Firefox browser (it is my default), even during a session when the browser has not closed, I get a pop-up prompting me to download an update. After numerous attempts to download the update, it still did not show up in my download folder nor did I see the download run or prompt a "finish". I checked download history and finally see that it says it installed on 6/25 but I am still getting repeated prompts to download and install an update. This is maddening. I am using Windows 10 Enterprise on an HP Elite Desk. Please help me fix this!