Thanks for the question 
Iâm not super familiar with IronFox, but this came up earlier in the thread re: RFP/FPP, Mullvad Browser, etc. The short version is that theyâre solving opposite problems.
RFP/IronFox/Mullvad harden defaults to shrink your fingerprinting surface. The goal is to tell sites nothing useful and look like every other hardened browser.
GeoSpoofâs value prop is that it doesnât hide your browserâs location, it replaces it with a location of your choice. You pick a place (or sync to your VPN exit) and it aligns geolocation, timezone, and every patchable browser api to match that location consistently.
Itâs also convenient and available across all browsers, so you can use it wherever you browse instead of committing to one hardened browser. That said, the tradeoff is that for extreme threat models you should not rely on GeoSpoof to 100% hide your geolocation. That is impossible outside of engineering the browser itself like Mullvad, Tor, RFP, etc.
