Do more on the web, with a fast and secure browser!
Download Opera browser with:
I am having the same issue.
I have found that it happens 100% when you:
it will show a suggestion (or just prints one letter if no suggestions) and stops updating adress bar.
And yes, this problem started with one of recent updates. Like 1-3 weeks ago
I am noticing the same behavior. With the recent updated my twitch stream delay went up to 7-10s in Opera. While in other browsers it is 2s
Google Chrome: 
Opera: 
Yes for me the issue (or intended behavior as some say)started when I updated to "Opera One" (version which has a loud welcome sound when browser starts)
Before that for a good period of time even only one browser windows was closing with last tab closed. I was rly surpised that noone experienced this, but looks like I am no longer the only one in this topic who is missing that behavior.
Maybe it was some bug with "invisible window" opened previously and my main window was closed as second browser window etc... Anyway I would like to have a setting in Opera to close browser window with closing last tab. Please let me know if there is some special form to submit to developers this kind of suggestion / feature request
Is there way to return old behavior when whole browser was closed if last tab was closed?
Maybe is there some hiden setting? or "opera experiment"?
I realy miss this behavior with recent update