Open tab with scroll wheel
I'd love to see a feature added where that makes it so new tabs can be opened by clicking the mouse wheel button in the tab bar where there is no open tab. Firefox has this feature Edit: I'm sorry if this is the wrong place to make suggestions. Admin: feel free to move my post to the appropriate place for suggestions, if this is not the right place.
Another thing I miss is being able to zoom in and out using ctrl+scroll wheel.
I'd love to see a feature added where that makes it so new tabs can be opened by clicking the mouse wheel button in the tab bar where there is no open tab. Firefox has this feature
Opera 12.17 has an even better feature: opera:config#UserPrefs|PageBarOpenURLOnMiddleClick (OpenURLOnMiddleClick), which goes to the URL on the clipboard when you middle-click on the Tab Bar.
If the clipboard contains text that is not a valid URL, it will do a Google search for the sentence, which is equally useful.
Zoom with Ctrl + Scrollwheel unfortunately had to be changed to Ctrl + Shift + Scrollwheel. It takes a bit of getting used to, but hopefully they will re-enable the old Opera behaviour when they can.
Suggestions are OK here, but there's a long thread in the All Platforms forum.