It forces a very common spelling mistake in your browser by swapping the word “there” with “their.”
Install the extension, and marvel as even respected publications like the New York Times, popular websites like Reddit, and email from your English major friend begin to write with the embarrassing typos.
Notes from the creator Jeff
I built this extension as a small side project that would help me learn some programming basics. I borrowed heavily (OK, almost completely) from Steven Frank’s famed “Cloud to Butt” extension, so my extreme gratitude goes to him. As soon as I learn how, I hope to bring some new features to this extension… There to their to…. they’re? The possibilities are endless. 😉