Privacy Policy

1. Scope and purpose

This Privacy Policy explains how the Epsilon Download Manager Chrome extension (the “Extension”) and its connection to the locally installed Epsilon Download Manager Windows application (the “Desktop App”) handle information.

The Extension’s single purpose is to let users capture browser downloads, selected links, webpage links and downloadable media, then manage those downloads in the Desktop App. The Extension communicates with the Desktop App through Chrome Native Messaging on the same computer.

2. Information the Extension handles

Epsilon handles only the information reasonably required for its user-facing download features:

3. Use and sharing

The information above is used only to provide or maintain Epsilon’s download features: capturing downloads, detecting downloadable media, collecting links selected by the user, naming files, authenticating requested downloads and communicating with the Desktop App.

• Epsilon does not sell user data.
• Epsilon does not use user data for advertising, profiling, creditworthiness or lending.
• Epsilon does not transfer user data to third parties except when necessary to contact a download server selected by the user, to comply with law, or to protect against security abuse.
• No human reviews a user’s browsing or download information unless the user deliberately provides specific information for a support request.

Chrome Web Store Limited Use disclosure: The use of information received from Google APIs will adhere to the Chrome Web Store User Data Policy, including the Limited Use requirements.

4. Chrome permissions

• contextMenus: provides right-click commands for links, media and selected/all page links.
• downloads: detects browser downloads and transfers accepted downloads to Epsilon; the browser copy is cancelled only after the Desktop App accepts it.
• nativeMessaging: communicates with the locally installed Desktop App.
• cookies: obtains cookies relevant to a requested download so authenticated downloads can work.
• webRequest: observes resource URLs and response metadata to detect downloadable media.
• storage: saves local preferences, temporary media results and recent connection errors.
• scripting: collects links selected by the user in the active page or frame.
• tabs and host access: associates media and link results with the correct HTTP/HTTPS page and supports downloads from websites chosen by the user.

All executable code is included in the Extension package. The Extension does not download or execute remote JavaScript or WebAssembly.

5. Local storage, security and retention

Per-tab media results are temporary and are cleared when the tab navigates or closes. Extension preferences remain in Chrome’s local extension storage until changed, cleared or the Extension is removed.

The Desktop App may retain download records and information required to pause or resume a download until the user removes them. If a cookie must be persisted for an unfinished download, the Desktop App protects it locally using Windows data-protection facilities. Diagnostic reports are created only when the user requests one and are not uploaded automatically.

Native Messaging transfers between the Extension and Desktop App remain on the same computer. Network downloads use the protocol provided by the user’s chosen download server; users should prefer HTTPS sources for sensitive downloads.

6. Your choices and controls

• Turn browser-download capture off from the Extension popup.
• Add websites to the exclusion list.
• Choose whether to send selected links, all links or individual media.
• Clear Extension storage or uninstall the Extension in Chrome.
• Remove download history and application data using Epsilon’s controls or Windows application settings.

7. Changes to this policy

This policy may be updated when Epsilon’s features, permissions or legal obligations change. The effective date at the top of this page will be updated. Material changes to data practices will also be disclosed in the Extension or its Chrome Web Store listing before the changed handling begins.

8. Contact

Questions, privacy requests and security reports can be sent to epsilondownloadmanager@gmail.com.

Project website: makanlab.tech
Source repository: Epsilon Download Manager on GitHub