THE ADDRESS WASN'T UNDERSTOOD..

Question

i put a link and when i try to open t, Firefox show that thing....where did i go wrong?

Answer 1

It means Firefox does not know/understand what protocol to use. In the following link (which also describes the issue) the protocol is "https"

https://support.mozilla.org/en-US/questions/1153241

The "://" signals the end of the protocol. There should be no spaces. Other common protocols are:

http://
ftp://
file:// (usually seen as file:/// because the 3rd slash starts file system navigation).

All of this is important because it tells the browser what network port to use (the protocol's default port):

http:// signals "open port 80"
https:// signals "open port 443" + security
ftp:// signals "open port 21"

Answer 2

what link you tried?

Answer 3

plz test with other browsers