I miss extensions support years ago, but now much more.
It's because recently I discovered an extension that makes what I wanted, get rid of all annoying cookies messages using my own settings in every website. It is 'Super Agent - automatic cookie consent' that I use in all my desktop browsers.
I would be a great feature to Opera, to have extensions support, like Kiwi browser for example.
I hate it when videos start playing without me wanting them to play.
There must be a way to allow the user to stop this.
Instead of faffing about with customizations like tab colors or backgrounds make something proper useful.