[ale] Facebook photo uploader and Firefox

[Chris Fowler]

On Tue, 2010-04-13 at 13:02 -0400, Brian Pitts wrote:
> On 04/13/2010 11:14 AM, Chris Fowler wrote:
> > Why does FF seem to lock up while trying to use the photo uploader of
> > Facebook?  Annoying.
> 
> I have this trouble with any flash-based uploader, not just on Facebook.
> It locks the browser during the upload, but things go back to normal
> once the upload is complete. Many sites have an option to use a "basic"
> uploader instead of the flash-based one.
> 


Why is this?  If flash executes in its own thread why would all threads
seem to block?