YouTube Daily Time Limiter от 1n-conseil

How does it work in detail ? Number of minutes spent on YouTube is monitored by the add-on, and is reset each day at midnight (local time). Daily time limit is set to one hour.

To preserve privacy, this module is restricted to youtube.com domain only.
When daily limit is reached, add-on will throw an alert each minute to say that daily limit is exceeded.

Daily limit cannot be edited yet, but could become editable in a futur release.