In a move to bolster security for the Chrome browser, Google sets a date for making Certificate Transparency mandatory for website owners.

Five Chrome bug bounty hunters split $14,000 in rewards as Google patches nine security flaws in its browser, four are labeled “high”.

Mozilla announced this week that it plans to integrate a silent updater in the next build of its flagship browser, Firefox, allowing future patches for Firefox 12 to be downloaded and installed in the background while the browser is running, according to a blog post by Robert Nyman, Mozilla’s Technical Evangelist on hacks.mozilla.org on Wednesday.

Microsoft was forced to push out an emergency update to its Security Essentials and Forefront products Friday after users complained that an updated virus signature intended to spot the Zeus Trojan was, instead, flagging and even removing instances of Google’s Chrome Web browser.

There has been a bit of back and forth quibbling going on between researchers at French security firm Vupen, claiming to have found and exploited a vulnerability in Google’s Chrome browser, and security researchers at Google, who claim the bug they exploited was actually in Adobe Flash, and therefore, was “Not a Chrome pwn.”