Disable anti-aliasing in google chrome or firefox

I don't have knowledge about Chrome but you can disable anti-aliasing in Firefox with;

  1. Go to about:config
  2. Search for gfx.font_rendering.cleartype_params.rendering_mode change it to 1 (ref: https://superuser.com/a/563845) Edit: This answer is very old but you can try it.
  3. Change gfx.text.disable-aa to True. (This one completely disables AA)