Then perhaps the Import Browser Data setting is turned on. You could check the Edge Settings Profiles Import Browser Data option to see if that's Turned On and if its trying to import data from your Firefox setup each time you boot up. Or perhaps the Edge System and Performance Startup Boost setting is On. Last resort, you could try using the Edge Reset Settings function to try and eliminate the problem. Or maybe its not Edge but it could be Firefox is loading Edge looking to copy settings from it.