- IPv6 Only

 - Between 8 and 255 (Recommended to be atleast 20!)

The Hop Limit setting is the same as the TTL for IPv4.  Each packet starts with the given Hop Limit and every router/switch/system that handles the packet will reduce it by one.  Once the Hop Limit reaches 0 the packet is dropped to prevent infinite loops and excessive network hops.

The recommended value for this is slightly lower than the OS/Browser you want to emulate.  This would make it appear as if you have a slightly longer network connection to the website.  Alternatively you can set it slightly higher to make it seem as if you have a slightly shorter network connection.