Yeah, when I leave a tab open in the background and I come back 1 minute later I see the blue bar reloading the page and video streaming is back to zero. Closing multible tabs is buggy as well. And what's bad furthermore: When surfing in private mode, the browser doesn't remember history, etc... but when you close it and reopen it it remembers all the open tabs (when you set it as the default behaviour). But that shouldn't happen for private mode.
_______ Check out_______ my Apps: Tilebreaker X - One of the best Tilebreaker Games available for the Playbook ;-) Tilebreaker X Free - The free version with about 10 levels.
The best you could do is use the QNXStageWebView class to create your own flash browser. I'm currently in the middle of doing this due to a lack of the BB browser's ability to spoof userAgents.