Event names changed on the platform

[janodvarko]

Adopt platform changes introduced in bug:
https://bugzilla.mozilla.org/show_bug.cgi?id=1290599

Honza

[janodvarko]

@rpl Luca, can you look in this one?

Honza

[rpl]

@janodvarko sure, I'll prepare a patch asap.

[rpl]

@jsnajdr has opened a pull request with a patch to fix this issue.