> The other opportunity is the tabs permission. This permission lets extensions see what tabs are open. Pushbullet uses this permission to avoid opening new tabs for websites that are already open when mirrored notifications are clicked. This is a small sacrifice to make to let go of a big permission. Let’s let it go!

No, that "small sacrifice" sounds super annoying! I don't use Pushbullet, but if I did and this got removed in an update, I'd be pissed off! At least leave it behind an optional checkbox.