I just upgraded from version 7 to version 9.
With version 7, I had entered a list of URLs which I wanted blocked.
This worked well. Frames within a webpage would contain a message
that the content of the frame was blocked by Avast!.
In version 9, I cannot find my list of URLs, and I do not know how to edit my
list. How may I do this with version 9/
Check the avastUI > Settings > Active Protection > Web Shield - click the cog wheel (settings) > Site Blocking. Here you can see if any URLs have been carried forward from your update (depends on how you updated) or you can enter new ones here.