Is Dark Mode (WebExtension) safe?

Dark Mode (WebExtension) applies dark styling across all websites by injecting CSS and JavaScript into every page.

The extension runs a content script on every page at document start, injecting dark-mode CSS and a JavaScript module that rewrites colors and visual styles. It stores user preferences locally via the storage API. As part of its CSS rewriting process, the extension patches Element.prototype.attachShadow on pages where native CSS stylesheet mode is enabled, forcing shadow roots to open mode so its styles can reach shadow DOM content.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.