Replace words and phrases on websites you visit, using the substitution lists from XKCD comics.The default substitutions are based on XKCD comics 1288, 1625 and 1679, but the lists can be customised in the options page.
Substitutions can be done silently, underlined, or highlighted to call attention to the changed text.
Individual domains can be blacklisted to prevent the extension from running on certain sites.