Like I said, they don’t have a set canon and have no way of defining the issue since they have no effective way of calling or ratifying ecumenical councils.
This is a difficult question to address without specifiying a certain group within the Eastern Orthodox. Even once you identify a group, you’d almost have to conduct a poll to find out the current practice amongst their adherents. From the old
Catholic Encyclopedia:
III. THE CANON OF THE OLD TESTAMENT OUTSIDE THE CHURCH
A. AMONG THE EASTERN ORTHODOX
The Greek Orthodox Church preserved its ancient Canon in practice as well as theory until recent times, when, under the dominant influence of its Russian offshoot, it is shifting its attitude towards the deuterocanonical Scriptures. The rejection of these books by the Russian theologians and authorities is a lapse which began early in the eighteenth century. The Monophysites, Nestorians, Jacobites, Armenians, and Copts, while concerning themselves little with the Canon, admit the complete catalogue and several apocrypha besides.
and…
E. THE CANON OF THE OLD TESTAMENT DURING THE MIDDLE AGES
The Greek Church The result of this tendency among the Greeks was that about the beginning of the twelfth century they possessed a canon identical with that of the Latins, except that it took in the apocryphal III Machabees. That all the deuteros were liturgically recognized in the Greek Church at the era of the schism in the ninth century, is indicated by the “Syntagma Canonum” of Photius