I got an error when trying to download with IDM extension on Mozilla Firefox: error 0x800700C1. If IDM is not running, then this error would pop out, but after opening IDM, no more error appeared. Nothing such as this happened before. The extension should automatically start IDM. It happened after I installed some driver for a useless cheap sub wireless adapter. Still couldn’t figure out how to use it anyway.
windows 7 64bit
IDM 6.03 beta build 5