Disable manual proxy setup from Settings Check your VPN Scan PC for malware Clear cache of your browser 1] Check proxy settings in your browser Firefox allows you to set up a proxy in various ways.

In the past, (Firefox 2) I had to manually set Firefox's proxy settings by hand regardless of how the OS X Network proxy settings were configured (Firefox wouldn't honor the system settings).

Access Denied, You don’t have permission to access The issue occurs when Firefox uses different proxy settings or VPN instead of what is set on your Windows computer.

Firefox doesn't use system level proxies, it has a separate proxy config for itself.<BR><BR>Settings -> Advanced -> Network -> "how Firefox connects to the Internet"<BR><BR>You probably have it ...

Tech Computing Can't access the network through Safari, iTunes, etc., but can through Firefox? Check proxy settings Some apps use the Mac OS X proxy settings, others do not.