This filter was probably created by future version of mozilla/netscape. You cannot enable this filter because we don't know how to apply it.
Is cosúil gur le leagan de Mozilla/Netscape atá le teacht a cruthaíodh an scagaire seo. Ní féidir an scagaire seo a chumasú toisc nach fios conas é a chur i bhfeidhm.