Firefox has received a significant update with the release of version 147, bringing enhanced privacy, smarter video controls, and crucial security improvements to your browsing experience.
One of the most noticeable changes is an evolution of the picture-in-picture mode. Now, videos can automatically enter this floating window format when you navigate to another tab, mirroring a feature many have come to expect from platforms like YouTube. Bringing the original tab back into focus instantly restores the video to its normal size.
Performance for video playback on AMD graphics cards has also been dramatically improved, bringing it in line with the smooth experience users enjoy on Intel and Nvidia systems. This means sharper visuals and fewer interruptions during streaming and video conferencing.
Privacy takes center stage with the integration of Safe Browsing v5. This powerful technology minimizes reliance on cloud-based checks by maintaining a regularly updated, local list of known dangerous websites. Your browser now proactively protects you without sending your browsing data elsewhere.
Under the hood, Firefox 147 addresses a substantial number of security vulnerabilities – at least sixteen, according to Mozilla’s latest advisory. Six of these are classified as high risk, including critical flaws that could allow malicious code to bypass the browser’s security sandbox and execute on your system.
While no active exploits of these vulnerabilities are currently known, the fixes are essential for maintaining a secure online environment. The update also includes resolutions for internally discovered vulnerabilities, further strengthening the browser’s defenses.
For users on older operating systems, extended support versions are also available. Firefox ESR 140.7.0 and 115.32.0 continue to provide security updates for Windows 7, 8.1, and older macOS versions, ensuring continued protection for those unable to upgrade their operating system.
The Tor Browser, focused on anonymity, has also been updated to version 15.0.4, based on Firefox ESR 140.7. A separate version, 13.5.27, remains available for older systems, offering continued security through Firefox ESR 115.32. Both versions include the latest NoScript extension.
A unique detail within the Tor Browser update is the NoScript extension, now hosted directly by the Tor Project and identified by the suffix “.1984” – a subtle nod to George Orwell’s vision of surveillance and control. This ensures the extension remains aligned with the browser’s privacy-focused goals.
Finally, Thunderbird, Mozilla’s email client, has also received updates (versions 147.0 and 140.7.0esr), inheriting the security improvements made in Firefox and providing a safer email experience.
