[pietroglyph]

For Firefox you can use the Stylish addon and "filter: grayscale(100%)" for similar effect.

[jordwest]

A warning that Stylish is now owned by an analytics company [1].

If you want a community owned alternative, check out Stylus: https://addons.mozilla.org/en-US/firefox/addon/styl-us/

[1] https://forum.userstyles.org/discussion/53233/announcement-t...

[rashkov]

Thanks, exactly what I was looking for. I went to "Create New Style" and added the following and now I'm all set:

  html {
    filter: grayscale(100%) !important;
  }

[seltzered_]

Thanks. pairing this with 'dark night mode' is pretty nice.

[rashkov]

oh wow, that is nice. I've been looking for something like dark night mode for a while now, glad you pointed it out