By downloading this extension, you are submitting no personal data (or any data) whatsoever.

Entering the name (the value that replaces Y/N) will save it locally, on your machine, and if you have sync on, it will be stored where the sync stuff are stored and usable for all browser instances where you have the same user. Once you change the name, it’s replaced. Once you delete the extension, it’s gone.

Entering other values and names (like values instead of Y/N, or other words you want to replace, or anything that takes effect only within one page and goes away when you refresh) will not store them anywhere.

I, the developer, have no data about you, the person who uses this extension, whatsoever, except what is provided by the web store (if any) about the installation of the extension (and nothing else).

The extension runs no scripts except those needed for it to function (so no ads, etc). I make no money off of this extension. You can look at the code on github. It’s open source. MIT License. Have a blast.