Cookie Policy
LighChat Cookie Policy
Last updated: 2026-05-07 Applies to: the LighChat web/PWA version (https://lighchat.app and subdomains).
1. What cookies are
Cookies are small text files that a website stores in the browser. They allow remembering preferences and session state.
LighChat uses cookies and similar technologies: localStorage, sessionStorage, IndexedDB.
2. Cookies we use
2.1 Strictly necessary (always on)
Required for the Service to function. No consent required.
| Name | Purpose | Lifetime |
|---|---|---|
__session | Firebase Auth session | Session |
lc_locale | Selected UI language | 1 year |
lc_theme | Light/dark theme | 1 year |
lc_csrf | CSRF protection | Session |
2.2 Functional
Improve the user experience. On by default; can be opted out.
| Name | Purpose | Lifetime |
|---|---|---|
lc_features_welcome_v1 | Welcome overlay flag | 1 year |
lc_last_chat | Last opened chat | 30 days |
2.3 Analytics
Used only with explicit user consent (cookie banner). Off by default.
| Name | Purpose | Lifetime |
|---|---|---|
_ga, _gid | Google Analytics (if enabled) | 2 years / 1 day |
firebase-perf-* | Firebase Performance Monitoring | up to 1 year |
2.4 Advertising
LighChat does not use advertising/marketing cookies.
3. Managing cookies
You may at any time:
- update your choice in the cookie banner;
- clear cookies via browser settings;
- use private/incognito browsing.
Disabling strictly necessary cookies may break parts of the Service.
4. Third-party cookies
Third-party services (Firebase, Google, payment providers when integrated) may set their own cookies under their own policies.
- Google: https://policies.google.com/technologies/cookies
5. Changes
The Operator may update this Policy. Effective date is shown at the top of the document.
6. Contact
legal@lighchat.app