Is the IP addresses shown in "Public IP Addresses" section your actual IP addresses?
Maybe not! Your browser might be configured such that it uses a proxy server. If so most likely the displayed IP address is the IP address of the server. However, there are different ways to find your actual IP address. Like using WebRTC method. WebRTC can bypass system-wide proxy and reveal your actual IP address. You can find a few browser extensions that can disable WebRTC.
What are the common terms used in proxy manager extensions?
There are usually four different ways to configure your browser to use a proxy server.
- No Proxy Mode (Direct Mode): In this case, your browser bypasses all the system level proxies and try to connect you to the internet directly. This option is usually useful to detect whether an external software is configuring your proxy or not. You can turn it on and off and compare IP addresses. Another use case is when you have internet connection and still you cannot browse any website. Most likely an external proxy manager is configured your network to use a proxy server that is not available anymore or is not responding. Turing "Direct Mode" on can bypass these proxies and allow you to browse the web.
- System Proxy Mode: In this mode, your browser uses system-wide proxy. Sometimes, proxy softwares only set system-level proxy and expect all other softwares use these settings. Not that the external software is going to manage proxy settings in this case and is responsible for all proxy leakages.
- Manual Proxy Mode: In this case, you are going to explicitly define proxy server for HTTP, HTTPS and FTP protocols. Some proxy extensions support "other" protocols as well.
To change your IP address, you need to configure your browser to use a proxy server. If you are on Firefox, try Proxy Switcher
add-on (extension), for Chrome browser, try Proxy Switcher
To learn more about how to configure your Firefox browser to use a proxy server and what different options you have, read Configure Proxy Settings in Firefox