You can save your passwords and usernames for a web page which require HTTP certification or a proxy certification. The configuration file is designated in "passwd_file" parameter. The format of the configuration file is as follows machine hostname port port number path local part realm realm string login username passwd password proxy Each configuration is began with machine and ended before the next machine. You can omit port, path and realm. proxy means settings for proxy certification. If passwd_file is readable from other users, w3m shows a warning for that. If you can not set the permission for the passwd_file because of the restriction of your OS, you can suppress the warning with the setting of disable_secret_security_check.