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autor: adolf garlic wystawiona: Cze. 23, 2008 ·

can't find 9.15.13 anywhere

Ta opinia jest o wcześniejszej wersji dodatku (0.9.15.13). 

przez John Woods (Autor) dnia Cze. 25, 2008 ·

You are right... but check the sandbox version... 0.9.15.13.
You must register here on addons.mozilla.org first, then it should show up when you select Show all versions. I did note that in the "long description."

Presently, it is marked as only to work with version 3.0 ~ 3.0.*... but you do satisfy that requirement.