Not working (with POST DATA needed for the refresh) anymore on Firefox 51 on PC Rated 1 out of 5 stars

When I select "Autorefresh > 1min", I got the "Warning, this page needs POST DATA" (kind of like it, sorry I have it in French) dialog from the extension (confirmed that's not the default dialog of Firefox) and when I click "OK", nothing happens.

It appears that it works correctly for tabs with no POST data required to refresh.

Works well before that, I will remove my one star review when it will be fixed.