> So what do you mean by "worthy"? Higher market share or some missing features? I'm obviously biased as I never left for competition but I don't have any complaints, neither on desktop nor with the Android version.

On Windows or Linux, IMO there is no competitive advantage on Chrome vs Firefox; However on macOS, Safari has a very big competitive advantage that Apple has done lots of integrations to macOS; it’s not just something like IE where Microsoft used private APIs to be the default browser; but that macOS users tends to have a big bias on native apps developed with the Cocoa API, with a native looking interface. Both Chrome & Firefox is a cross platform browser that really doesn’t really care whether the macOS version is integrated well, hence having a very outstanding look compared to other apps.