Hi Tore,

I understand you host the online VFP help site at https://www.vfphelp.com/vfp9/ . Thanks for hosting this excellent resource.

I've noticed what seems to me some unusual behaviour. When I visit the site I see a left pane with navigable table of contents, and the right pane shows the contents of the current selection. Initially CPU utilization is very low. This is all as expected.
If I navigate the left pane, CPU remains low. However, as soon as I click on any topic CPU jumps up to about 30% on my quad core machine and remains there as long as I have the site open. After the initial page load I would normally expect CPU to drop back down to a low level.
I see this in current versions of Firefox and MS Edge on Windows 10.
Is this known/expected behaviour? I ask because there is a type of malware which, when injected into a compromised site, causes visitors' computers to mine cryptocurrencies. This manifests as unexpectedly high CPU utilization.