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how do I enable Java?

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when I go to play certain game on Java some I can play and some I cannot. I wait and then a screen come up saying oops something is not right. Your browser could not load this java game. I have updated java. Then it said to test java page enable java

when I go to play certain game on Java some I can play and some I cannot. I wait and then a screen come up saying oops something is not right. Your browser could not load this java game. I have updated java. Then it said to test java page enable java

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Java should be automatically enabled after installing it.

Can you press CTRL + SHIFT + A then go to Plugins then see if Java is enabled?

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You can go to about:config then search for plugin.state.java and change its value to:

0 - never active
1 - ask to active
2 - always active