We list mitigations added in all Firefox versions.
| Version (and date) | Mitigation | References |
|---|
| Firefox 50 (Windows only) | Sandboxing | 1 |
| Firefox >= 56 | (some) Portions of Firefox are written in Rust (Oxidation Project) | 2 |
| Firefox Nightly only | Site Isolation/Sandboxing (Fission Project) (Not complete) | 3 |