Privacy Policy for Momo
Last Updated: November 17, 2025
Simple Summary: Momo does not collect, store, or share any personal information. The extension only processes Japanese text you hover over to provide translations via the Jisho.org API. All data stays local to your browser.
1. Information We Collect
We do not collect any personal information.
The Momo extension only processes:
- Japanese text you hover your mouse over while browsing websites
- Translation results that are cached locally in your browser for faster access
We do NOT collect, store, or have access to:
- Your browsing history
- Personal information (name, email, address, etc.)
- Website content beyond the text you hover over
- Any form of tracking or analytics data
2. How We Use Information
When you hover over Japanese text:
- The text is sent to Jisho.org API for translation purposes only
- The translation result is cached locally in your browser to improve performance and reduce API requests
- JLPT (Japanese Language Proficiency Test) level information is looked up from a local database bundled with the extension
All processing happens locally in your browser. We do not have access to any of this data.
3. Data Sharing
We do not share your data with any third parties, except:
- Jisho.org: Japanese text is sent to their API solely for translation. Please review Jisho.org's privacy policy for how they handle this data.
We do not:
- Sell or rent any data
- Share data with advertisers
- Use analytics or tracking services
- Store data on external servers
4. Data Storage
All data stored by Momo remains local to your browser:
- Translation Cache: Stored in your browser's local storage to speed up repeated lookups
- JLPT Database: A static database of Japanese words and their proficiency levels, stored as part of the extension
- Onboarding Status: A simple flag indicating whether you've seen the welcome guide
You can clear this data at any time by:
- Removing the extension from Chrome
- Clearing your browser's local storage
5. Permissions Explanation
The extension requests the following permissions:
- activeTab: Required to read Japanese text on the webpage you're viewing when you activate the extension
- storage: Required to cache translation results locally for better performance and to save your onboarding status
- https://jisho.org/*: Required to fetch translation data from the Jisho.org dictionary API
6. Third-Party Services
This extension uses the following third-party service:
- Jisho.org API: An online Japanese-English dictionary. When you hover over Japanese text, it is sent to Jisho.org to retrieve translation data. Jisho.org operates independently and has its own privacy policy.
7. Children's Privacy
Momo does not knowingly collect any information from anyone, including children under 13. The extension is designed to be a simple translation tool with no data collection.
8. Changes to This Policy
We may update this privacy policy from time to time. Any changes will be reflected by updating the "Last Updated" date at the top of this policy. We encourage you to review this policy periodically.
9. Contact Information
If you have any questions about this privacy policy or the Momo extension, please contact:
Email: violet@himaa.me
10. Your Rights
Since we do not collect or store any personal data, there is no data to access, modify, or delete. All processing happens locally in your browser and you maintain full control by:
- Disabling the extension at any time
- Uninstalling the extension
- Clearing your browser's local storage
Bottom Line: Momo is a privacy-focused extension. We don't collect your data, we don't track you, and we don't share anything with third parties (except sending Japanese text to Jisho.org for translation). Everything stays on your device.