FoxyProxy handles the switching of Firefox’s Connection Settings dialog automatically rather than requiring you to handle the process manually, which the browser does without the extension. You can control how you want it set up so that the proxy server changes for the various URLs that you visit.
The extension works not only with the browser on your computer but also Portable Firefox. You will also find that the support that you have for PAC files is improved with the extension. An icon displays whether the proxy is in use. The extension is available in 34 languages, so if English isn’t your first language, you can check to see whether it is available in yours.
