@17misha: I also don't like the default behavior of ctrl-tab and ctrl-shift-tab, but there is a keybinds section in Opera, though it's super easy to miss. In settings, go to Features, then scroll all the way down. The very last option is "Configure shortcuts." When you click that, you'll probably be scrolled down the page of keyboard shortcuts a bit - scroll back to the top of the list. There's a special "Search shortcuts" field where you can find things easier. What you're looking for is "Switch right through tabs" and "Swith left through tabs" - set these to ctrl-tab and ctrl-shift-tab. You may need to unbind the existing keybind for those - honestly, it's been so long since I set it, I don't recall if I needed to do that first. But now you can press ctrl-tab and move to the tab to the right, none of this last tab stuff. There's a few other annoyances I turn off in there as well. Hope that helps!