used to target actually transphobic people + sites, now just targets anyone who doesnt agree with the creators :< if youre considering installing this anyway, please please please look at what they consider to be a qualifier for red vs green marking first, esp intersex + transmasc people. you can check their guidelines by going to the user page (click the "shinigami eyes" link right under addon title), click "homepage", scroll down to "shinigami eyes website", then to the section labeled "how to label".