Portable FireFox problem - not able to access net

[koolbluez]

I work in a company with highspeed internet connection.
I luv Firefox but can't use it here ('cause I have no admin privileges i can't download and install software...)

So i tried dldin Portable FF and running on the system...

Although the browser is able to open intranet pages... I'm not able to access webpages in the internet... like yahoo...

Why is this happening? I tried many options like "Connection Settings" to auto-detection... but nuthin works... I'm able to access intranet not internet...

Can anythin be done... if yes how... do i have any alternatives... NEED HELP DESPERATELY

Also what & where's opera's portable version....

[mediator]

Go to command prompt and type ping yahoo.com!
If ping gives 100% results, then might be some problem with ur firefox! Else u dont have browsing priviledges!
Configure the master computer to give ur PC access!

[koolbluez]

uhmmm.... not that problem

[Choto Cheeta]

mate may b ur intranet pages r not compartable with FF so 1st check whether they r compartable with FF or not....

[koolbluez]

what i said is that intranet can be accessed... but internet can't be accessed with firefox, not viceversa...

But with IE, I can access both inter&intranet easily...