For visiting some special web sites or setting local DNS,you may need to use a proxy server in your web browser.This tutorial shows how to add proxy settingsĀ for Opera and Firefox.
1.In firefox window,go to Edit->Preferences
(or Tools->Options
).Select Advanced->Network
tab,click on Settings
then,configure proxy settings in this window:
2.For opera,go to Tools->Preferences
.Advanced->Network
tab,click on Proxy Settings