Complete Internet Repair is a free Open Source Power Tool to repair internet connections and get you up and running in no time. Please note that it is unable to repair hardware faults or get your ISP up and running or not yet.
This software is not reviewed yet.
It's quite normal for Firefox to be sucking up over 200MB of memory right off the bat. Firemin can decrease Firefox's memory usage to as low as 10MB and stop your computer from running out of memory.