If I'm using Chrome only to test how websites render in it, what are the alternatives? Use another Chromium based browser or do they have the same issues as Chrome? Use a browser testing suite such as BrowserStack? Or will using a user-agent switcher in Firefox achieve the same effect as using Chrome?
Put a "best viewed in Safari" badge on it and stop testing in Chrome.
If you want to know how an average user will see your site, you should probably be testing with a default profile, with no adblocker. You could leave the browser signed out of your Google account, or have a separate one just for this.
