Firefox and Chrome no longer support Java-like plugins.
Every
now
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and
then
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, Java is subject to security issues where code can break out of Java's sandbox and obtain more privileges than it should.
In almost all cases, such issues are actively being used for drive-by attacks via the Java browser plug-in, for example by malicious ad banners.
Since removing Java completely is not an option for us, make sure the Java plug-in is always disabled in every browser, even when you have updated Java on your machine.
Please remember to also check browsers inside your virtual machines.