How to disable a plug-in in Opera Browser version 11 and later
Open the browser and type about:plugins or opera:plugins in the address bar (usually used for website addresses).
You'll see all plug-ins with details. Press Disable next to the plug-in name to disable it.
You may disable all plug-ins in one click – just uncheck Enable plug-ins.
Please note the Update plug-ins link is used to update the list of plug-ins, not plug-ins themself.