flashgot and download helper

[Thufir]

I'm using flashgot and download helper, plugins for firefox, to download 
some vid's (flv's).  I've browsed away from the videos and firefox is 
just at no-javascript gmail, but the cpu is still pegged.  top shows:

top - 20:41:18 up  1:37,  6 users,  load average: 1.73, 2.12, 2.45
Tasks: 125 total,   1 running, 124 sleeping,   0 stopped,   0 zombie
Cpu(s): 15.9%us, 11.3%sy, 70.8%ni,  0.0%id,  1.0%wa,  0.7%hi,  0.3%si,  
0.0%st
Mem:    480412k total,   444336k used,    36076k free,     6304k buffers
Swap:  2396712k total,    52464k used,  2344248k free,   180632k cached
PID to kill: 
  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  
COMMAND                   
15509 thufir    39  19 82052  10m 7772 S 15.6  2.2   0:00.47 totem-video-
thu           
 1930 root      20   0 77544  29m 7004 S  4.3  6.3   5:25.59 
Xorg                      
 2499 thufir    20   0 62608  16m  11m S  4.0  3.4   0:11.46 gnome-
terminal            
 2421 thufir    20   0 73024  17m  13m S  3.3  3.7   1:15.35 
nautilus                  
 2428 thufir    20   0 23136 9156 5200 S  3.0  1.9   0:41.24 imsettings-
appl           
 2547 thufir    20   0  242m 104m  22m S  1.3 22.3  14:07.14 
firefox             

However, I'm hesitant to kill totem.  Is it involved in the download 
somehow?  The downloads are rather large and I'm not so keen to have the 
CPU pegged for hours on end...


thanks,

Thufir