Idmgcext.crx

Chrome/Edge’s cryptographic verification fails. This often happens after a browser update or if the file was partially copied during IDM installation.

: Adds a floating button above videos (like on YouTube) that lets you download the media in various resolutions and formats. Context Menu Integration idmgcext.crx

Yes, but then IDM will not capture downloads from Chromium browsers. If you want only manual download links via right-click, deletion is fine. Chrome/Edge’s cryptographic verification fails

Here’s a ready-to-use post for a blog, forum, or social media about the file : idmgcext.crx