category webextension-modules browser chrome://browser/content/ext-browser.json

category webextension-scripts c-browser chrome://browser/content/parent/ext-browser.js
category webextension-scripts-content browser chrome://browser/content/child/ext-browser-content-only.js
category webextension-scripts-devtools browser chrome://browser/content/child/ext-browser.js
category webextension-scripts-addon browser chrome://browser/content/child/ext-browser.js