What about another “leave it to the manufacturer” strategy?
The JRE is configured by default to automatically upgrade to the latest version. Oracle believes that it is stable enough for general use. It is better to leave it for the automatic update function.
Runtime Check
Of course, there is always How to check if Java works on my computer?
Firefox
An old version of Java has been detected on your system.
Update Java by clicking the button below:
A polite way to say "no plugin found for FF".
Chrome

User friendly
But ultimately, in any case, leave it to the end user to decide which version to use and to update.
Andrew Thompson
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