The completion in Japanese with the combobox and firefox

[s.parpaite]

First, sorry if the post is not in the correct place but i can not read japanese.

We are trying to have the auto completion in japanese with the combobox. We use ext 2.2.0.
I have tried based on the exemple combos.html.

First i have added 3 items in States.js

Ext.exampledata.states = [
['jp', 'ありがとう', 'The Heart of Dixie'],
['jp2', 'モ市', 'The Heart of Dixie'],
['jp3', 'もし', 'The Heart of Dixie'],
['AL', 'Alabama', 'The Heart of Dixie'],
['AK', 'Alaska', 'The Land of the Midnight Sun'],

Everything is all right, it well appears in the combos if i use the arrow.
But when i use the japanese tool to be able to key in the japanese character, nothing append with firefox, with ie it is (almost) perfect.
What we have to do ?
Thank you

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