Idmgcext.crx — File

Delete: %LOCALAPPDATA%\Google\Chrome\User Data\Default\Extensions\ngpampappnmepgilojfohadhhmbhlaek (The extension ID is fixed for genuine IDM.) idmgcext.crx is a safe, signed browser extension that enables Internet Download Manager to capture and accelerate downloads from Chromium-based browsers. It operates locally, does not transmit user data externally, and is required for full IDM functionality. However, users should always download IDM from the official website (internetdownloadmanager.com) and verify the digital signature of the CRX file to avoid malicious imitations. Document version: 1.0 Last updated: April 2026