Confirmed: not working in FF 51.0.1 on PC Rated 3 out of 5 stars

I have used RE for a long time and this is the first time it's failed to work with a new FF release.

Feature request Rated 5 out of 5 stars

>There is only one thing, is there a possibility to enable the
>add-on automatically every time when the browser is
>opened, without user interaction?
[bump] from me. This would make this add-on pretty much a pre-requisite for any installation of FF. It would need to "remember" the timer value for each tab, though.