Idmgcext.crx — !!hot!!
Sometimes, a corrupt registry entry blocks CRX installation. Run regedit , navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Tonec\IDM , and delete any keys mentioning crx_blocked . Then reinstall the extension.
Alternatively, type chrome://extensions/ into your address bar and press Enter. Step 2: Enable Developer Mode idmgcext.crx