Hacker News with Generative AI: Browser Security

Verifying Firefox Sync privacy claims (afarah.info)
Recent controversy and a history eroded trust on Mozilla's privacy claims for some, with commenters worrying about Firefox Sync, which can synchronize your browser history etc between devices, relying on Mozilla servers for it. A reasonable concern at first glance. But what data actually gets sent to Mozilla, if any? Let's verify.
uBlock Origin forcefully disabled by Chrome (reddit.com)
Ublock Origin extension got removed from my Chrome browser by force, with a message saying that it was not supported anymore.
How is my Browser blocking RWX execution? (rwxstoned.github.io)
While testing payloads, I stumbled across a security feature implemented within a popular browser, which acts like an EDR. By hooking a key Windows API, it checks thread creation at runtime and then decides whether this should run or not.
Exploiting leaked timestamps from Google Chrome extensions (fingerprint.com)
Mullvad browser review – Experience VPN-like security in a browser (techradar.com)
Microsoft Edge will start blocking screenshots on the job (pcworld.com)
Browser Security Bugs That Aren't: JavaScript in PDF (textslashplain.com)