Which page do you usually see the popup, coji2001?
It could be that you have too much data in your browser's cache. You can dob the basic browser troubleshooting steps to see if the behavior stops.
You can start by logging in to QuickBooks in a private window, and observe for a while if the deposit screen still pops up. If not, you can go back to your regular browser and clear the cache. If the behavior still exists even on a private browser, please try using other browsers like Edge, Google Chrome, or Safari. This is to check if this only happens to a particular browser or not.