Parameter fuzzing and forced browsing

[indianwhitehathacker () yahoo com]

I was going through the OWASP Top Ten Guide and I came across these terms:-

1. Parameter fuzzing
2. Forced browsing

What are these? Is forced browsing something like an attempt to access a resource that I am not supposed to access by 
putting the direct link with the necessary parameter values in a hope that may be in that page the authentication is 
broken?

Also, I read about fuzzers. Can someone throw light on what are fuzzers?

-------------------------------------------------------------------------
Sponsored by: Watchfire

Watchfire was recently named the worldwide market leader in Web 
application security assessment tools by both Gartner and IDC. 
Download a free trial of AppScan today and see why more customers choose 
AppScan then any other solution. Try it today!
  
https://www.watchfire.com/securearea/appscancamp.aspx?id=701500000008VnB
--------------------------------------------------------------------------