plugin_setting()

   $value = = $browser->plugin_setting("option_name");

When called in the context of a plugin, returns the setting for the requested option. The option must be placed in a [PluginName:plugin] configuration file section:

  [MyPlugin:plugin]
  foo = bar

Now within the MyPlugin.pm plugin, you may call $browser->plugin_setting('foo') to return value "bar".