tasks when connecting to Version 17

Regarding the list of tasks required after upgrade, forwarded in an e-mail by Emily on Jan. 8 on behalf of PALS helpdesk:

1. I've connected to the harp as directed. The second task says to go into ADM--configuration--application configuration--common headings and then to change two lines called "browser" to reflec the path on my PC. Do I need to do that? What path is it talking about? How do I find out the path on my PC?
2. The next part of that step says to modify the [Mail] setting to reflect our institution. Is that something I need to do? If so, what do I use for the setting?