The pattern I've seen is that people move to a new browser due to speed and bloat. When IE was king, people started moving to Firefox, because it was fast and lean. Over time, it didn't feel so lean anymore, and then Google launched Chrome with TV ads showing how fast it was. Now everyone makes fun of the system resources Chrome requires, but people probably don't see a viable alternative to move to. Firefox is likely seen as old, Safari is only viable on Apple platforms, and everything else is a coat of paint on either Chrome or Firefox. Maybe Ladybird will take users from Chrome when it's ready for general use.