Yet another of life's little conundrums......
 

...at the moment I'm running Opera in tandem with Firefox to see if I can decide which is better.
I have adblock plus installed on FF and would like to have it on Opera as I'm plagued with pages jumping up and down as another ad imposes itself on me.
Problem is that Opera doesn't want to accept adblock.
Is there any way round this?
In hope.

The Ancient Mariner

My Opera (v.10.10) has it's own inbuilt ad blocker.

Right click on a blank part of the page, select 'Block content', click on offending item and you won't see it again.