Always seeking a more efficient, clean and different way to interface with my oft used programs, I decided awhile ago to undertake the grand adventure of streamlining my browsing experience and making the most of Opera's strengths. I did away with the archaic tab interface and instead sought to utilize the panels feature to its fullest--along with some customized buttons and editing of the mouse/keyboard layout. The result is perhaps my dream interface: clean, slick and--most of all--functional. With continual revision and movement of buttons, address/search bars and other things around, it has come to represent everything I have come to love in a good GUI--customization, minimalism and function.
Minimalism at its finestAt its most minimalistic, my new Opera interface has nothing but the webpage showing, the tab bar/panels/other bars/menu have all been hidden. It creates for a browsing experience that is akin to fullscreen, yet there is a key difference--with my current configuration I can access a bevy of other features and functions with only a click or two, no need to enter/exit fullscreen. The 'Window' panel is a stroke of genius, a feature with so much utility--even at this underdeveloped stage--that it is crazy this feature is not advertised front and center, as a way to replace the tab bar and get more done, faster and easier. That all the other major browsers are still stuck in the 'tabs are the best thing since sliced bread' mindset, this small feature is what they should be moving toward. Not only that, Opera does not (and never did) implemented tabs (pages) in the anemic way that other browsers do, this is true MDI as opposed to their SDI, something that I feel Opera has vastly undervalued.
True MDI, Pages>TabsThe panels provide a one stop interface with which to switch between the major players when I am browsing: Bookmarks, Notes, Windows (Pages), Downloads and Links (on current page). The Downloads panel could be fleshed out and there are some things that could be changed to make the Bookmarks and Notes more use friendly, but compared to the methods implemented by other browsers, I don't have to open a new tab (Chrome) or window (Firefox) to interact with my Downloads or Bookmarks--simple, clean, effective. Unfortunately, the Opera browser, for several reasons, won't be a major player (in the near future) and all these great user interface paradigms will go to waste, though some can be had via inferior Firefox extensions (like Tree Style Tab).
Bookmark InterfaceLastly, a talk about UI in Opera would not be complete without a talk about mouse gestures, so beautifully implemented that it bears special mention. Opening/closing/bookmarking pages, cycling pages, accessing preferences and various other actions can be accomplished with a combination of mouse gestures and Flipback/Flipforward. Flipback/forward (press right-click then left-click in rapid succession and vis versa) is genius, especially when combined with the switch tab feature, allows easy cycling back and forth within a window, much faster than manually clicking on a page, especially if they are close to each-other (in page order). Being able to move forward and back without needing to find the button to press keyboard shortcuts is something that you don't appreciate until you go back to Chrome, Firefox or Internet Explorer and their lack of mouse gestures. Firefox has extensions that bring this feature, but the ones I have used so far don't have the same solid responsiveness and utility that Opera's native mouse gesture system brings.
There are a variety of reasons why Opera is my preferred browser, beyond mere browser performance or benchmarks (which to a point, when actually browsing, you can't tell the difference between all the major browsers), Opera provides a nearly endless customizable interface that conforms to the user, instead of like Chrome or Firefox, whose interfaces (without downloading a bunch of bloated extensions) are fairly static and anemic. For minimalism--Chrome--for functionality--Firefox--for minimalism with functionality--Opera.
Everything in one, convenient place