I am also having this issue and both ideas don’t work.
Going to Avast and changing the settings to not use Chrome as the default browser, did that twice today and has not changed how my laptop starts up the browser session. I click on Firefox and it takes forever to load but within seconds Chrome pops up and suggests I give it a try. I don’t want to, I hate Chrome.
I have gone into the control panel and have Firefox as my default browser, and Chrome only has Chrome HTML Document as its default.
So does anyone have any idea’s beyond those 2 suggestions please suggest away.
Cathy