[orca-list] orca master and firefox 52.9.0: bug with wiki

[Jérémy Prego <jeremy pregonetwork net>]

hello,

for some time, I noticed that orca master don't read the wiki when I
open it with firefox 52.9.0. orca reads the entire page, except the
wiki, which is given the most important :)
site for exemple: https://en.wikipedia.org/wiki/Orca_(assistive_technology)

I don't know too if a debug may be necessary in this case.

debug log: https://hastebin.milkywan.fr/hozofeqisa.sql

thanks !

Jerem