Adf.ly skipper
Audio Only Youtube
Chrome Remote Desktop
Coupons at Checkout
Enhanced Steam
EverSync (With FVD Speed Dial)
Grammarly (even if you type well, it catches the little things)
Honey (basically more coupons)
Imgur Community Extension (right click images to upload to Imgur, really helpful for shitty hosts and long links)
Pay by Privacy.com (This one is really good, creat virtual debit cards in an instant with lots of customization, like spending limits by charge, by month, or by total. Great for trials and shit.)
Piggy (More coupons)
Showgoers for Netflix (watch Netflix with friends)
Wikibuy (finds the best price when you're on Amazon)
And HTTPS Everywhere