Chrome and Opera weren’t even close to Firefox, but they did cut down their scores by more than 100ms. Firefox was marginally better than in our 2019 outing, shaving 8 milliseconds off its score-though that is within the margin of error. Interestingly, Edge was quite a few seconds faster than the other two Chromium browsers. It won the SunSpider test handily (lower is better) with Edge coming in second. Looking at both JetStream 1.1 and SunSpider, Firefox won top marks. Firefox performed abysmally in this test compared to its counterparts. Our top winner for this round was Edge, but as we said it’s hardly a resounding victory with Chrome and Opera not that far behind.

Let’s start with JetStream 2, the newest addition to our testing regimen. Next, click the Allow extensions from other stores button, select Allow in the pop-up window that appears, and then visit the Chrome Web Store and use it just like on Chrome. As with classic Edge, extensions come from the Microsoft Store, but it can be set to install Chrome extensions by typing edge://extensions into the URL bar and pressing Enter. That means extensions from the Chrome Web Store are available, but not by default. Performance with Chromium Edge is on par with Chrome and Opera, and it also has similar functionality. The new version isn’t bundled with Windows 10 at this writing, but installing it from Microsoft’s site will automatically replace legacy Edge with the new Chromium browser on the desktop. Microsoft Edge is dead, long live Microsoft Edge. Like Chrome and Firefox, Opera also has cross-device syncing features.

Opera also has its own take on the social sidebar with one-click access to services such as WhatsApp, Facebook Messenger, and Telegram.

Firefox takes up too much cpu