Resolved Efficacy of Java Plugin Blocking in Opera?

I am interested in the efficacy of the 'Enable plugins only on demand' (in Preferences – Advanced – Content) in the Opera browser. I am primarily investigating this because of all of the Java malware scares there are at the moment. There is no disputing that Java exploits are a security problem for all of us & seem to be on the rise.

Whenever I have tried to discuss this on the Opera forums my posts have mysteriously been deleted, or the thread closed. I have long since ceased to discuss anything meaningful on the Opera forums as it appears that any discussion about this particular topic is discouraged.

In the thumbnail displaying the Java verification page in the Opera 12.02 browser, you can plainly see the active blue throbber & the plugin grey circle/white triangle icon (indicated by a red arrow) below which has to be clicked-on to allow Java to deploy. The throbber will continue to be active until the icon is clicked-on.

In the thumbnail featuring the Firefox (PortableApps 15.0.1, Firefox 2 Reloaded theme) you can see a red dotted arrow quite plainly showing that the Java is disabled utilising (a slightly customised) PrefBar. Plus, the page jumped straight from the 'Verifying Installation' page to the page stating: 'Something is wrong. Java is not working'.

It is plain that Java is definitely inhibited with both browsers, well, that is until allowed of course. What I am interested in is how effective is Opera's plugin blocking compared to other browsers? Sometimes the Opera grey circle/white triangle icon doesn't always display in pages such as YouTube (flash player), which makes me wonder just how effective it really is. I use the 64 bit Opera a lot on my desktop PC so I have a vested interest in this information.

Does anyone have any thoughts on this?


Java + You

 

That's good then, in that case.

Sorry, perhaps I didn't make myself quite clear. I have noticed that sometimes (although it seems predominantly on my 32 bit notebook) that the flashblocking on YouTube is a tad intermittent. Normally the icon is there & won't play until clicked, unfortunately sometimes when I go to YouTube it doesn't appear at all & the flash just runs as normal. My guess is that this is a bug of some kind as it doesn't happen with other flashblockers. Even including Maxthon 3's rather primitive version of Firefox's flashblocker, which has never suffered from this problem.

Thanks for the very interesting & valuable information.