Two, the Chrome version of an add-on frequently has more work put into the user interface. So if you download a new version of Chrome or install an add-on on one of your devices, when you log in to your Google account in Chrome on another device, the browser will automatically download and install those add-ons or updates. One, your add-ons are linked to your Google account. The best add-on support: Chrome slightly edges out Firefox in two ways. Google's Chrome Web browser has become one of the most popular in the world, thanks to smooth performance, support for add-ons, and features like casting and voice search that are absent in or only partially implemented by competing browsers like Safari, Mozilla Firefox, and Microsoft Edge.