Firefox uses a separate add-on ( idmmzcc2.xpi ), not idmgcext.crx .
Install IDM from the original setup file. The .crx is automatically placed in the IDM program folder. Do not download it from third-party DLL or extension websites. idmgcext.crx
Most of the time, IDM installs this extension automatically. However, browser updates or security settings often disable it, leading to the common complaint: "IDM is not catching my downloads." Firefox uses a separate add-on ( idmmzcc2
The system cannot locate the .crx file because IDM was moved, uninstalled, or the path changed. Do not download it from third-party DLL or
: It acts as the browser extension file (CRX) that enables the "IDM Integration Module".
If your IDM download panel isn't showing up, the easiest fix is to manually re-install the extension using the IDMGCExt.crx file.
idmgcext.crx is the Chrome extension file for Internet Download Manager (IDM)