In Vienna 126.96.36.1999 and previous, I would go through and click on an article and then click on its header to open this article in a new tab in my browser (Firefox). When I was doing many of these in a row, the browser would usually start to fall behind in opening the URLs, but the requests would 'queue' so that I could still select and click on more headers in Vienna and eventually all the articles would get opened in new tabs in my browser.
With Vienna 188.8.131.520, this is no longer always the case. If I select many more items while the browser is 'busy' opening the last selected item in a new tab, sometimes (not always) one of the new items gets lost and never makes it into a tab. That is, the 'queuing' of the requests seems to get interrupted in 184.108.40.2060 if multiple new 'Open Link in New Tab' requests come in, and is no longer 100% reliable.