How to disable access for internet browsers like CHROME or FIRFOX ?

[toytown]

If you are using a reverse proxy (such as nginx) you can block browser user agents using a piece of code like this in the "server" section.  I'm not home to try it, but it should look something like this

Code:

if ($http_user_agent ~* (Chrome|Edge|Firefox) ) {
return 403;
}