The ads beside the videos would be OK for me but the pre-roll ads are annoying especially when they change the behavior of the player: I'm used to click on the

The ads beside the videos would be OK for me but the pre-roll ads are annoying especially when they change the behavior of the player: I'm used to click on the player to pause the video, but when it's playing an ad then the click opens a webpage instead of pausing the video and sometimes it even freezes Firefox for several seconds. This is what reminds me to turn on AdBlock.