Been using this for years - it works really, really well - especially when I need SSH tunneling to access protected sites in a squishy network.

I've used it on both Linux and Windows successfully in the past several years.

Perfect for my tests with cloud VM in other countries.
There's one thing I whished for: If called site matches whitelist, it would be great if all followed includes from that page to other servers (tracking, cdn) would be proxied as well. Apart from that, nice tool.

This is the best and most user-friendly firefox app! I give 5 stars!