Browser slow-down with Linux Flash Player 9.0.21.78

Question

With more than one Flash animation/app playing, Firefox and
all Gecko-based browsers (like Galeon) will grind to a halt.
CPU load doesn't rise, however. The rest of the system is
unaffected, only the browser seems to be running on a 16MHz 286...
If I switch to another tab, the page view will not update
(contents of the old tab stays in view) until I scroll the new page
down a bit. All clicks on links and other user actions seem to be
"swallowed" and delayed by varying amounts of time (couple of
seconds - half a minute).
When a non-Gecko browser (Konqueror) uses the same plugin, I
have not seen any of these problems.
This problem existed in 9.0.21.55, but has not been fixed in
9.0.21.78.
I had none of these issues with Flash Player 7.x.

Answer 1

I've finally found out what made the flash player crash; thus
allowing me to debug & profile my application.
It turns out that the player can't handle library class
override ... in other words the application must not redeclare one
of the library's class. So if you do not use classes hot fix to fix
issues in the library you use, and there will be no problem.
(What i mean is the if you have library "L" that declares
class "c" under path "p" and that you need to be using a fixed
version of class "c", you could copy the fixed class in your
project under the path "p" and tell the compiler to use your
version of the class, therefore allowing you to have fixed version
of the library before having it being released; it worked perfectly
with previous versions of the player, but not this one.)