"Mozilla has released Firefox 3.6.6, an incremental update which
tweaks the way the browser handles misbehaving plug-ins, giving
Flash and other plug-ins 45 seconds to respond, or else get shut
"Just a couple of weeks ago, Firefox 3.6.4 was released. It
included a new Crash Protection feature that keeps plug-ins like
Flash and Silverlight isolated into separate processes. If a
plug-in hangs or crashes, it won't cause the entire browser to
crash with it. Firefox only lets the plug-in remain unresponsive
for 10 seconds, then it shuts the process down. (This feature is
only available in the Windows and Linux version of Firefox, Mac
users will have to wait for a future update).
"Firefox 3.6.6 extends the amount of time Firefox will wait
before terminating unresponsive plug-ins. Mozilla upped the limit
to 45 seconds. Apparently, the 10-second timeout limit proved too
short for many users — Flash routinely hangs for more than 10
seconds without crashing."