Change 1000+ of WordPress Featured Images in 5 Minutes! › Forums › Questions and Answers › Need Thumbnails populated from first image in post › Reply To: Need Thumbnails populated from first image in post
Yes, QFIP can do that. The images can be on another server. QFIP will download them, upload them into the media library and set them as featured images of the respective posts.
Downloading a batch of images needs time. I am thinking such an old blog as yours would have many posts (more than 500 or so?) and thus many images to download. So running the process with only some posts will prevent timeout errors, which are not a failure of the plugin but based on a limitation set by the server.
To process small amount of posts please use filters. The Time Filter is very handy for that.
If that should not work you can contact me for support.