about:config no longer works in the latest version of Firefox for Android, and all of a sudden all the proxy switcher add-ons are no longer supported. Previously, I was able to manually set a proxy server in the "about:config" page, but now going to that address just gives me an error. What do I do? I need to be able to set a standard http/https proxy for my android Firefox. It's crucial for my work. Can someone tell me what changed that it suddenly no longer works? Cheers.