Don't work on Safari but did on Firefox

[Spoutnik]

On the same page:
http://ici.tou.tv/7-par-jour/S01E01?autoplay=true
I see the ad at the beginning of the video in Safari but not on Firefox. Why?
version Adblock plus 1.8.12 -- Safari 8.0.5 -- OSX 10.10.3

Note: the page can only be seen in Canada I think. So use a proxy if you need it

[mapx]

if flash, due to the safari limits the video ads can't be blocked

Adblock Plus for Safari is based on Adblock Plus for Chrome and Opera, but has a few limitations, mostly due to limitations of Safari:
Popups can't be blocked.
XMLHttpRequests can't be blocked.
Requests initiated by third-party plugins like Flash can't be blocked. This mostly affects in-video ads (like prerolls), however not those on YouTube, which are blocked in a different way.

it seems the site is not accepting html5 technology, so ...use other browser to watch video online