Comment 3 for bug 1479064

This will most likely be an issue for all flavors this test is run on. It looks like the relation between GtkTreeView & AtkTreeView has changed in a recent Gtk upgrade. It's been over 18 months since the tests were written :-)

IIRC the current logic will find the languages treeview on the left side by looking up visible AtkTreeView object in the accessibility tree once that was found we could compare the object's rect properties with that of the all the GtkTreeView's, which we could then select the one that matched. There was no easy way to do this going straight down the Gtk object tree.

This may have changed now though so it would be worth firing up autopilot vis once the test has failed.