No TempFox account
No analytics, advertising, profiling, or telemetry
Inbox history, settings, provider sessions, and generated credentials stay in Firefox local extension storage
Email HTML is converted to inert text; remote images, scripts, iframes, and tracking pixels are not loaded
Optional website access is requested only if OTP auto-paste is enabled and is removed when disabled
Operational mailbox requests go directly from Firefox to the selected temporary-mail provider; TempFox has no server