--- a/mail/components/migration/src/nsSeamonkeyProfileMigrator.cpp
+++ b/mail/components/migration/src/nsSeamonkeyProfileMigrator.cpp
@@ -472,18 +472,16 @@ nsSeamonkeyProfileMigrator::PrefTransfor
   MAKESAMETYPEPREFTRANSFORM("network.proxy.http",                       String),
   MAKESAMETYPEPREFTRANSFORM("network.proxy.http_port",                  Int),
   MAKESAMETYPEPREFTRANSFORM("network.proxy.ftp",                        String),
   MAKESAMETYPEPREFTRANSFORM("network.proxy.ftp_port",                   Int),
   MAKESAMETYPEPREFTRANSFORM("network.proxy.ssl",                        String),
   MAKESAMETYPEPREFTRANSFORM("network.proxy.ssl_port",                   Int),
   MAKESAMETYPEPREFTRANSFORM("network.proxy.socks",                      String),
   MAKESAMETYPEPREFTRANSFORM("network.proxy.socks_port",                 Int),
-  MAKESAMETYPEPREFTRANSFORM("network.proxy.gopher",                     String),
-  MAKESAMETYPEPREFTRANSFORM("network.proxy.gopher_port",                Int),
   MAKESAMETYPEPREFTRANSFORM("network.proxy.no_proxies_on",              String),
   MAKESAMETYPEPREFTRANSFORM("network.proxy.autoconfig_url",             String),
 
   MAKESAMETYPEPREFTRANSFORM("mail.accountmanager.accounts",             String),
   MAKESAMETYPEPREFTRANSFORM("mail.accountmanager.defaultaccount",       String),
   MAKESAMETYPEPREFTRANSFORM("mail.accountmanager.localfoldersserver",   String),
   MAKESAMETYPEPREFTRANSFORM("mail.smtp.defaultserver",                  String),
   MAKESAMETYPEPREFTRANSFORM("mail.smtpservers",                         String),