Bug 950200 - [Email][V1.3][POP3] Please change the "SettingS" of POP3 configuration page to "Settings"
Merge pull request #14865 from mcav/fix-pop3-header-1.3

Bug 950200 - [Email][V1.3][POP3] Please change the "SettingS" of POP3 configuration page to "Settings" r=asuth a=fabrice