Understandably, one of the main reasons why so many parents and child caregivers want parental controls on Roku is due to profanity. Unfortunately, Roku doesn’t have a profanity filter, even though it has been a frequently requested feature from Roku users. However, if you’re specifically thinking about watching Netflix on Roku, an alternative can be adding the “Netflix profanity filter” extension on the Chrome browser. Granted, you take Roku out of the equation here, but it can work for Netflix on Chrome.