Browser extensions are the most annoying innovation in browsers history
There are extensions you don't even remember they are.
I strongly believe that I have built extensions (e.g. modern scroll or Textbox Auto Resizer) like that. No popup, no buttons, no distraction. And if you can tell me anything that's not user-friendly as you state, than I'm happy to rid that flaw for you.
You can do it with your hand or your wife! It will be done but experience is different!
ROFL. True dat.
But an extension doesn't necessarily need to be a hand ^^
They call me ancient but I begged for extensions from Opera v5! I agree that there are some good extensions, I'm using some of them (like PageRank extension on opera presto). Some of them are useful but the whole system is wrong. I saw a note extension and it was awful. I loved to see extensions in sidepanels and with more native interface not a popup web UI.
The world knows this, even though a few users like xoex don't. Probably best for him to stick with the older Presto.
If world knows so I was wrong using opera v4 and above. I had to use IE 6! Now If you want to know what world knows, Chrome marketshare is about 50% and opera below 2%. Go use Chrome!