What’s the evidence that Chrome’s market share is due to sync and not due to a) arriving at a time when IE was terrible with speed and security and b) a huge ma

What’s the evidence that Chrome’s market share is due to sync and not due to a) arriving at a time when IE was terrible with speed and security and b) a huge marketing campaign behind it You’re chalking up people switching to Chrome as being attracted to proprietary backend featured, without any evidence.