Mozilla released Firefox 22, which includes 14 security updates: four are critical, six high, three moderate and one low.
Facebook users - especially those in Brazil - are being targeted with malicious browser extensions trying to hijack Facebook profiles, warns Microsoft.
Some two months ago, Reporters Without Borders have identified UK-based Gamma International as one of the "enemies of the Internet" due to their FinFisher spyware tool kit being used by a number of oppressive governments.
Mozilla released Firefox 20 that fixes several security and stability issues.
Adobe is urging users to update their Flash Player for the third time this month, as once again the company is aware of vulnerabilities being exploited in the wild in targeted attacks.