Privacy Policy for Gloss
Last Updated: March 17, 2026
1. Introduction
Gloss ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how our Chrome Extension collects, uses, and discloses your information.
2. Information We Collect
We collect the following information only when you actively interact with the extension (e.g., by selecting text on a webpage):
- User Selected Text: The specific text you highlight for translation.
- Contextual Information: Surrounding text, page title, and URL to improve translation accuracy by understanding the context.
- Technical Data: Temporary logs required for error debugging (which do not contain personally identifiable information).
We do not collect browsing history, cookies, or any data from pages where you do not actively trigger the extension.
Signing in with Google is required to use the extension. Therefore, we also collect:
- Google Account Information: A unique user identifier provided by Google. We may also collect your email address, display name, and profile picture to show account status in the extension UI.
- Authentication Credentials: The extension uses industry-standard OAuth 2.0 authentication to sign you in securely via Google. Authentication credentials are stored only within your browser and are never sent to third-party servers other than Google and our own backend.
3. How We Use Your Information
The collected information is used solely for the following purpose:
- To provide context-aware translations via our backend system.
- To verify your identity, manage your account, and record basic usage counters for service operation and improvement.
4. Third-Party Services
We use trusted third-party services to process translations. Your data is transmitted securely to:
- AI/LLM Services: We send the selected text and contextual information to AI language model APIs to generate translations. We do not allow these services to use your data for model training.
- Google: We use Google's authentication services to verify your identity.
- Cloud Infrastructure Provider: Our backend infrastructure is hosted on a trusted cloud provider with industry-standard security practices.
5. Data Retention
We do not store your selected text or translations permanently. Data is processed in real-time and is discarded after the translation is returned to your browser.
Because Google sign-in is required, we may store the following limited metadata:
- Account information: A unique user identifier, and optionally your email address, display name, profile picture, plan/perks, and last-used timestamp.
- Translation logs (metadata only): Target language, text length, success/failure, and latency. We do not store the content of selected text in these logs.
- Usage counters: Aggregated usage counts for service operation and improvement.
Translation log records are retained for 14 days and then automatically deleted. Other account metadata and usage counters are retained as necessary to operate and improve the service or until deletion is requested.
6. Data Security
We implement industry-standard security measures to protect your data, including encrypted communications and secure authentication protocols. Authentication credentials are stored securely within your browser and are not accessible to other extensions or websites.
7. Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page.
8. Contact Us
If you have any questions about this Privacy Policy, please contact us at: gloss.extension@gmail.com
日本語版: プライバシーポリシー（日本語）