Script not run in background tab

[exotfboy]

I'd like to open a video page in a new tab without activate it. And my script will be activated in that page to implement two features:

1 Simulate mouse event to bypass the captcha(slide a square).

2 Make the video play

Now I encounter two problems:

1 The simulation does not work unless I switch to the tab.

2 The video does not play even I use video.mute=true;video.play()

Is this possible?