Mozilla is disabling older versions of the Java Deployment Toolkit plugin for Firefox users. This is in a bid to block attacks against a newly-discovered Java security hole that attackers have been exploiting of late to install malicious code. The release of Firefox 73 fixed high-severity memory safety bugs that could cause arbitrary code execution and missing bounds check that could enable memory corruption. Read the full article on the new ransomware: Ransomware now sniff out saved credentials for Internet Explorer, Mozilla Firefox, Mozilla Thunderbird, Google Chrome and Microsoft Outlook.
Source: https://threatpost.com/mozilla-disables-java-plugin-firefox-042010/73853/