Offically sanctioned Ewok firing a blaster? If so, we’ve come a long way from Lucasfilm forcing Topps to remove a knife from an Ewoks hand back in the 90’s.
I dunno, this looks like fan art to me, either way it’s pretty cool to see Ewoks fighting with modern weapons.
As for anything official (well, Legends anyway), there were some Ewoks at the battle on Coruscant in Dark Empire. There’s no shot of them actually firing any blasters, but I doubt they were equipped with bow and arrow.
However, this got me wondering what other art/fan-art I might find of Ewoks with “modern” weapons, and I was not disappointed;
The one on the right is apparently Legends-canon.