was added, mentioning this gamestar URL
http://www.gamestar.de/videos/specials,20/oculus-rift,86946.htmlas the reason.
When deactivating this whitelist filter in Firefox (with ABP and only EasyList + EasyList Germany enabled), I could not reproduce any issue with playing the video.
So please remove that filter as it seems to be outdated.
Another reason why I want this whitelist filter removed is the following, though it should be irrelevant if the whitelist filter is not needed anyway:
Whitelisting that script actually breaks loading videos in uBlock (at least in Chromium, with some of ubo's own filters that circumvent the anti-adblock mechanism), e.g. on this page
http://www.gamestar.de/spiele/watch-dogs-2/artikel/watch_dogs_2,52381,3303008.html, clicking the video preview image just makes the preview image disappear, but no video player appears.
||gamestar.de/js/gamestar/my_ad_integration.min.js^$important(i.e. disabling the whitelist filter) fixes this issue in uBlock Origin.