Is there a program or browser add-on to automatically set ad breaks?

As the title says, looking if there's anything to automatically set ad breaks. I usually go through and set ads breaks every minute, but my videos are getting longer and longer, and I thought I remembered someone mentioning something like I described.

If you know of anything like what I described (or maybe any other useful add-ons/programs you think other creators should know about), post them here!