Is ePub Reader Safe? — Extension Safety Profile

This extension requests the ability to read and alter data on any website you visit through the *://*/* host permission. It can also store data locally and add items to your browser’s right-click menu. While an EPUB reader might need to fetch files from remote sources, a blanket permission covering all websites goes beyond what many similar reading tools require. Users should consider whether this broad access aligns with their expectations for a simple e-book viewer, especially when combined with the developer’s modest reputation footprint.

In general, browser extensions that request all-site access can theoretically observe or interact with your web activity. For e-book tools, the more typical safety consideration is making sure the extension does not unexpectedly bundle trackers or inject ads—though the developer here declares that data is not sold or misused. Keep in mind such declarations are self-reported and not externally verified, so a cautious user might weigh them against the relatively low community rating and the developer’s limited online presence.

The fact sheet shows a perfect score for Maintenance & Ownership, reflecting the extension’s recent update and use of Manifest V3, which is a positive signal for ongoing support and compatibility. By contrast, Publisher & Identity scored lowest, indicating that public information about the developer is thin—something you might want to verify independently before granting sweeping permissions.