A user style for Google Sans-ing titles in Google search pages.

google-sans-for-google.user.css

/* ==UserStyle==
@name        Google Sans for Google's titles
@description Google Sans-ing titles in Google search pages.
@author      Hazem AbuMostafa (http://hazemam.com)
@homepageURL https://gist.github.com/HazemAM/1f4a12deb4f95158b4edda1aab3be924
@updateURL   https://gist.github.com/HazemAM/1f4a12deb4f95158b4edda1aab3be924/raw/google-sans-for-google.user.css
@namespace   github.com/hazemam
@version     1.0.4
@license     Apache-2.0
==/UserStyle== */

@-moz-document url-prefix("https://www.google.com") {
  @import url('https://fonts.googleapis.com/css?family=Google+Sans:400,500,700');

  h1, h1 > *,
  h2, h2 > *,
  h3, h3 > *,
  [role="heading"],
  #hdtb,
  .mWyH1d,
  .vSuuAd,
  .iXqz2e,
  .wCIBKb,
  .kno-ecr-pt {
    font-family: 'Google Sans', Arial, sans-serif;
    /*font-weight: 500;*/
  }
}