MullvadBrowser Release 14.5.8, 15. Okt. 2025 Imported Security Fixes from FireFox-Version 144.0, 14. Okt. 2025 MullvadBrowser Release 14.5.7, 16. Sep. 2025 Imported Security Fixes from FireFox-Version 143.0, 16. Sep. 2025 MullvadBrowser Release 14.5.6, 21. Aug. 2025 Imported Security Fixes from FireFox-Version 142.0, 19. Aug. 2025 MullvadBrowser Release 14.5.5, 24. Jul. 2025 Imported Security Fixes from FireFox-Version 141.0, 22. Jul. 2025 MullvadBrowser Release 14.5.4, 25. Jun. 2025 Imported Security Fixes from FireFox-Version 140.0, 24. Jun. 2025 MullvadBrowser Release 14.5.3, 2. Jun. 2025 Imported Security Fixes from FireFox-Version 139.0, 27. Mai 2025 MullvadBrowser Release 14.5.2, 19. Mai 2025 Imported Security Fixes from FireFox-Version 128.10.1, 17. Mai 2025 MullvadBrowser Release 14.5.1, 30. Apr. 2025 Imported Security Fixes from FireFox-Version 138.0, 29. Apr. 2025 MullvadBrowser Release 14.0.9, 1. Apr. 2025 Imported Security Fixes from FireFox-Version 137.0, 1. Apr. 2025 MullvadBrowser Release 14.0.8, 27. März 2025 Imported Security Fixes from FireFox-Version 128.8.1, 27. März 2025 MullvadBrowser Release 14.0.7, 4. März 2025 Imported Security Fixes from FireFox-Version 136.0, 4. März 2025 MullvadBrowser Release 14.0.5, 5. Feb. 2025 Imported Security Fixes from FireFox-Version 135.0, 4. Feb. 2025 MullvadBrowser Release 14.0.4, 9. Jan. 2025 Imported Security Fixes from FireFox-Version 134.0, 7. Jan. 2025 MullvadBrowser Release 14.0.3, 26. Nov. 2024 Imported Security Fixes from FireFox-Version 133.0, 26. Nov. 2024 MullvadBrowser Release 13.5.9, 30. Okt. 2024 Imported Security Fixes from FireFox-Version 132.0, 29. Okt. 2024 MullvadBrowser Release 13.5.7, 9. Okt. 2024 Imported Security Fixes from FireFox-Version 131.0.2, 9. Okt. 2024 MullvadBrowser Release 13.5.6, 3. Okt. 2024 Imported Security Fixes from FireFox-Version 131.0, 1. Okt. 2024 MullvadBrowser Release 13.5.3, 5. Sep. 2024 Imported Security Fixes from FireFox-Version 130.0, 3. Sep. 2024 MullvadBrowser Release 13.5.2, 8. Aug. 2024 Imported Security Fixes from FireFox-Version 115.14.0, 6. Aug. 2024 MullvadBrowser Release 13.5.1, 10. Jul. 2024 Imported Security Fixes from FireFox-Version 128.0, 9. Jul. 2024 Sources Wikipedia-Table of the FireFox-Versions and Release-Dates: https://de.wikipedia.org/wiki/Versionsgeschichte_von_Mozilla_Firefox Release-Site of the MullvadBrowser on GitHub: https://github.com/mullvad/mullvad-browser/releases Notes There are several Versions not listed because they had no Security-Fixes. Statistics 1 Day, 0 Days, 2 Days, 2 Days, 1 Day, 6 Days, 2 Days, 1 Day, 0 Days, 0 Days, 0 Days, 1 Day, 2 Days, 0 Days, 1 Day, 0 Days, 2 Days, 2 Days, 2 Days, 1 Day. 26 / 20 = 1,3 (Average Days)