replace-github-avatars
A userscript to replace all users' avatars with yours.
anonymous-github.
This userscript is deprecated byInstall
Firefox
Install Greasemonkey, then click here to install replace-github-avatars.
Chromium
Install Violentmonkey (Opera store / Chrome store) or Tampermonkey, then click here to install replace-github-avatars.
Safari
Install JS Blocker, then click here to install replace-github-avatars. Tampermonkey for Safari may also work, but I have yet to test it.