In addition to privacy protection, which largely takes place in the background of the browser, another key ingredient to a well-made browser is the actual user interface and functionality. Almost all seven browsers are equal when it comes to tab browsing, bookmark management, auto-completion, proofreading and extensions. { -brand-name-firefox }, { -brand-name-edge } and { -brand-name-opera } also offer a quick screenshot function that proves to be quite handy and is definitely something you notice is missing when you switch over to a browser without it.