alright about a year ago i used portable firefox on a computer at school and i have no idea how anything was set i just installed it and used it right away and nothing was blocked and all java scripts and effects were working if anybody knows why it worked then and it does not now please let me know and even better if you have a solution it would be much appreciated.
They probably have a proxy now. You can check with our GetProxy utility. The utility and info on configuring Firefox are here:
https://portableapps.com/support/firefox_portable#proxies
Sometimes, the impossible can become possible, if you're awesome!