If you’re on an Apple Macintosh, you probably use Safari. One nice feature of Safari is the ability to use extensions. They’re kinda like apps, but specifically for your browser.
I don’t use many, but this article highlights some of the more popular ones. They’re almost always free and fully vetted by Apple so you won’t get viruses if you get them from Apple.
Check out the full list of extensions and find one to make your life a little easier on your Mac. My favorite is ad-blocking software.