Ever since i've bought a new HD laptop (with an absolute minimum resolution of 1920x1080) it's been a pain to properly view some websites. The most annoying being flash frames.
Using sites like kongregate.com (and many other), with firefox and a little page zoom, the flash window rarely fills the designated space. Zooming in (with the flash menu) overfloods the frame and only by then zooming out does it finnaly fit to the proper dimensions.
This is a big inconvenience by itself, but it becomes exasperating (and completely voids the playability of some games or the watching of some videos) when this workaround is rarely possible due to the fact that the zoom feature is very often unavailable.
Is there any plans to adress HD compatibility issues in the next Flash player build?
Is there a way to insure the zoom feature is always present in all flash embedments?
If you feel like you've run into a bug, I'd recommend opening a new bug report over at bugbase.adobe.com.
However, I suspect your issue is with the content providers and not Flash itself. A Flash developer will be able to create a fullscreen application and scale the graphics appropriately if needed with the Flash Player 11.3 release (which will be out soon). I do not believe Flash's context menu for zoom will accomplish what you are trying to do as it does not increase the viewing area, but instead just zooms on the area where the click occurred.