haxxx your neighbor's wifi
or tether onto your phone if you have a decent mobile plan
or if you can't tether because of carrier bullshit, do some shit like an SSH tunnel into your phone or use VNC and a desktop browser on your phone (an Android phone with the UserLAnd Linux app works great for that, you can run desktop firefox over vnc on it)

been a while since I had to do that last one, you had to do some fuckery with ADB on the computer and I could not tell you specifics anymore （⌒∇⌒ゞ）