Let's try this again:
I am a survey panel member (which means that I receive daily invitations to take part in them) and I access the survey links using Opera.
Sometimes, the survey disclaimer states that an add-on needs to be installed. At one time, opera:plugins would have accessed plug-ins and the Extensions tab would have accessed extensions only.
However, since opera:plugins is no longer functional, I am asking if 'Extensions' is where I would find the installed add-ons so that I can delete them after the survey is complete.
Again, I ask: Are Add-ons and Extensions listed together in the Extensions tab?