I use Things on macOS and they offer the ability to record a page's link and add a note to it and add it to Things, as long as that app uses Applescript.
"The app needs to have an AppleScript interface so that Autofill can access a selection within it. Specifically, the developer needs to support linking to objects in the app via URLs: for example, Mail uses message:// and Safari uses http:// or https://."
It works with Chrome and Firefox needs every advantage it can get to stop Chrome from taking over the internet. Any chance Firefox can get this added so we can claw back some market-share from the evil don't be evil corporation?