The Mozilla Foundation released a new version of Firefox this week—release number 59. It treads further down the performance improvement path that November's Quantum release began, but its most interesting feature is a quality-of-life one: Firefox 59 users can prevent some websites from popping up requests to send notifications to your device or from requesting to use your camera unexpectedly.
Specifically, the update notes say:
Added settings in about:preferences to stop websites from asking to send notifications or access your device's camera, microphone, and location, while still allowing trusted websites to use these features
Numerous websites, especially news sites and other publishers, request to send these notifications so the notification center of, say, your Mac will be filled with news stories with enticing headlines for you to click, driving more traffic. It's annoying, and it muddies the waters of the Web browser's user experience. You can add trusted websites as exceptions, but all such requests will be blocked otherwise.