What NightShift stores
NightShift stores the preferences needed to provide its features in chrome.storage.local
on the user's device:
- global enablement and automation preferences;
- appearance values and theme colors;
- per-host overrides, such as whether a host is enabled;
- excluded host patterns; and
- the optional developer-mode flag.
The hostname is stored only when the user creates a site override or exclusion. It is never uploaded.
What NightShift collects or sends
NightShift does not collect or transmit browsing history, page contents, visited URLs, hostnames, usage statistics, diagnostics, identifiers, or contact information. It has no analytics, telemetry, crash reporting, tracking pixels, advertising, accounts, subscriptions, or external database. The extension makes no external network requests.
The content script reads the current document's computed styles locally so it can calculate conservative dark replacements. That work stays inside the tab and is not persisted as page content.
Permissions
storageis used for the local settings database.<all_urls>is required to apply the theme automatically across ordinary websites and frames.- The manifest command registers the suggested local keyboard shortcut.
NightShift does not request browsing-history, bookmark, cookie, download, account, or notification permissions.
Limited-use commitment
Any page or hostname information available to NightShift is used only to provide its single purpose: applying the user's dark theme locally. NightShift does not sell, share, advertise with, or transfer that information to third parties.
User control
Users can disable the extension globally, disable an individual host, remove exclusions, reset settings, export settings on demand, or uninstall NightShift from Chrome. Exported JSON files are created only when the user explicitly chooses export and are managed by the operating system.
Policy changes
If the implementation ever changes how data is handled, this policy and the extension documentation will be updated before that behavior ships.