What does your feature entail? What is it for? How will it affect existing workflows or user experience?
The default font is extremely difficult to read for some dyslexic users. It's easy enough to override with CSS, but most users cannot be expected to be comfortable using CSS. Adding an easy toggle to disable the default font and defer to system instead will greatly increase accessibility.
What are the exact ways that you see a user using your proposed feature? Please go into as much detail as possible, and provide examples of how other browsers/apps implement this feature, if applicable. If your feature suggestion adds on to an existing feature, how would it work into it to extend its usefulness?
I foresee users who find the default font difficult to read using this feature to make the search engine easier to use.
