Effective Date: July 19, 2025

This Privacy Policy describes how Timothy Kempf ("the developer") handles your information in connection with your use of the Neutral Face Emoji Tools Firefox browser extension ("the extension").

Summary (The Short Version)

In short: This extension does not collect, store, or transmit any of your personal information or data to the developer or any third party, other than Slack itself. The extension's sole purpose is to provide a convenient interface for you to interact directly with Slack's existing API.

How the Extension Functions

The Neutral Face Emoji Tools extension is designed to simplify the process of adding custom emojis to your Slack workspace. It operates entirely within your browser.

Authentication: The extension does not ask for your password or credentials. It utilizes the authentication token that Slack has already stored in your browser from your active, logged-in session. This is the same token your browser uses when you use the Slack website normally.

API Interaction: When you use the extension to upload an emoji, it uses this token to send a request directly to Slack's official Application Programming Interface (API) endpoint for adding emojis (e.g., the emoji.add method).

Data Flow: The emoji image data is transmitted from your computer directly to Slack's servers. At no point does this data pass through or get stored on any server or service owned or operated by the developer, Timothy Kempf. The extension merely facilitates the direct communication between your browser and Slack's API.

Information We Do Not Collect or Store

The developer, Timothy Kempf, firmly believes in user privacy. The extension has been built so that it does not require access to, nor does it store, any of your data. We explicitly DO NOT collect, see, or store:

• Your Slack API token or any other credentials.
• The content of the emojis you upload.
• Your Slack workspace details, user name, or email address.
• Your Browse history or any other personal data.

The extension's code and functionality can be inspected to verify these claims.

Third-Party Services (Slack)

The extension's sole purpose is to interact with the Slack API. Any data you upload to Slack through this extension is subject to Slack's own Privacy Policy and Terms of Service. We encourage you to review them.

Slack Privacy Policy: https://slack.com/privacy-policy

Data Security

The extension relies on the robust security measures of the Firefox browser and your existing authenticated session with Slack. Since the developer does not store any of your data, there is no user data on the developer's side to secure.

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. Any changes will be reflected on the extension's page on the Firefox Browser Add-Ons store. We encourage you to review this policy periodically.

Contact Us

If you have any questions or concerns about this Privacy Policy or the extension's functionality, please contact the developer:

Timothy Kempf
tim@kempf.dev