Claude
f34e3b8eee
Required for Firefox Add-ons (AMO) public listing submission. Documents that all processing is 100% local, no data collection, no servers, no analytics. Explains each permission and all optional network requests (sync, org policy). https://claude.ai/code/session_01SWSwDfMVij53bCTNSCLMwn
3.6 KiB
Privacy Policy — Silent Send
Last updated: March 26, 2026
Summary
Silent Send does not collect, transmit, or store any data externally. All processing happens 100% locally in your browser. There are no servers, no analytics, no tracking, and no telemetry of any kind.
What data Silent Send accesses
Silent Send accesses the following data only within your browser to perform its core function (substituting personal information before it reaches AI services):
- Text you type in AI chat interfaces (Claude, ChatGPT, Grok, Gemini, etc.) — scanned for configured personal information and substituted before sending
- Files you upload to AI services — text is extracted and scanned for personal information before upload
- Your identity configuration — names, emails, usernames, hostnames, phones, and their substitute values, stored in browser local storage
- Your substitution mappings — real-to-substitute value pairs you configure
- Activity log — a local record of substitutions performed (never sent anywhere)
- Settings and preferences — extension configuration
Where data is stored
All data is stored in your browser's storage.local (the extension's private storage area). When at-rest encryption is enabled, all sensitive data is AES-256-GCM encrypted before being written to storage.
Data is never sent to any server operated by Silent Send or any third party. The only network requests Silent Send makes are:
- To the AI service you are already using (e.g., claude.ai, chatgpt.com) — this is the substituted/sanitized version of your text, not the original
- GitHub Gist sync (optional, user-initiated) — if you configure Gist sync, your encrypted settings are stored in a private Gist on your own GitHub account
- Custom URL sync (optional, user-initiated) — if you configure a custom sync endpoint, encrypted settings are sent to the URL you specify
- Org policy URL (optional) — if you join an organization, the extension fetches the policy JSON from the URL your admin provides
Data sharing
Silent Send does not share any data with anyone. There are no analytics providers, no crash reporting services, no advertising networks, and no data brokers involved.
Data retention
All data persists in your browser until you delete it. You can:
- Clear all data via Options → Danger Zone → Reset Everything
- Uninstall the extension (removes all stored data)
- Export your data before clearing
Permissions explained
| Permission | Why it's needed |
|---|---|
storage |
Store your identity, mappings, settings, and activity log locally |
activeTab |
Access the current tab to inject the substitution script |
scripting |
Inject content scripts on custom domains you configure |
notifications |
Show desktop notifications for sync status updates |
alarms |
Background polling for auto-sync and org policy updates |
| Host permissions (claude.ai, etc.) | Intercept API requests to substitute personal information before sending |
Children's privacy
Silent Send does not knowingly collect data from children under 13. The extension does not collect data from anyone — it processes everything locally.
Changes to this policy
If this privacy policy changes, the updated version will be posted at this URL and in the extension's GitHub repository.
Contact
For questions about this privacy policy, open an issue at: https://github.com/outis1one/silent-send/issues
Open source
Silent Send's source code is publicly available at https://github.com/outis1one/silent-send — you can verify every claim in this policy by reading the code.