firefox download problems

Hi everyone

please can you assist.

i am attempting to download Xvid movie clips from a specific site, but the download cuts off..

i have un-installed the codec pack and tried loading an erlier version of the VLC media player..but its not helping.

I used to be able to download in the past when i had an earlier version of VLC , but im not sure what else to look for?

Can you help

Vinay