Block any URL and another method! , more thorough than Adblock, more flexible than hosts, no need to restart the browser

Transfer from Sociz (formerly Mozine) forum
Original Sticker Address: http://hall.sociz.com/index.php?showtopic=20662

There are several ways to block URLs, and using the Adblock extension does not completely block a domain name, modify the Hosts file to block specific URLs, or use wildcards. The following method will give an alternative shielding strategy: automatic proxy blocking.
Add a sentence here. See a lot of people seek to block embedded text ads extension or method, some people say with ad muncher can X off, which is impossible from the principle of Web page parsing, can only use hidden methods.

Use Notepad to save the following code as a "*.pac" File ("PAC" extension)
Code
function FindProxyForURL (URL, host)
{
Blacklist
if (shExpMatch (host, "114.*") | |
shExpMatch (URL, "*/ad/*"))
Return "PROXY 0.0.0.0:0";
Else
return "DIRECT";
}

Then set in Firefox: Tools =〉 options =〉 Advanced =〉 network =〉 settings =〉 automatic proxy configuration URL, fill in the "*.pac" local path, such as "File:///C:/Firefox/proxy.pac", complete.
Now enter "114.xyz.com" or "WWW.XYZ.COM/AD/ABC" in the Address bar, the following prompt will appear:
File Attachment block_with_proxy.pac.png (9.96KB) Download number of times: 28


You can add any URL you want to filter in your code, here's an example
"URL" indicates the requested URL:
"Http://adv.imhb.cn/index.php?ID=5"
"Host" indicates the domain name of the requested URL:
"Adv.imhb.cn"
Use the symbol "*" as a wildcard to match any character:
"shExpMatch (Host," *id=7* ")"
"| |" means "or" i.e. or:
"shExpMatch (Host," 114.* ") | | shExpMatch (URL, "*/ad/*") "
&& "means" and "that and:
"shExpMatch (Host," 114.* ") && shexpmatch (URL," */ad/* ")"
“!” The expression "non" is not:
"!shexpmatch (Host," 114.* ")"