Pro usar iste additivos, tu debera discargar Firefox.

Aperir session
Icone del additivo

Recensiones de Modify Header Value

Modify Header Value per Milen, Linder

3,7 Stellas de 5
5
30
4
8
3
10
2
6
1
9
Recension de Usator de Firefox 14178169
per Usator de Firefox 14178169, 7 éve
Header rules can't be changed, you need to remove and add rule again. There is no export/import possibility.