current tab jumps to top of the tab list, background tabs opened are placed to end of the list

When I open a link in the background it goes to the end of tab list instead of next to the currently used tab.
To reproduce the problem:
Open ~5 tabs in the browser. And go to the 3rd tab now load a website there and do these:
-The behaviour I see with "open link in new tab":
long click on link with "open link in new tab", a new tab is created that goes to the top of the tabs list and the next tab (the one below) is the original page I opened the link from.
It is a bit strange that the original tab changed its location in the list. I think it would be better if it kept its original location and the new tab was inserted between the 3rd and 4th (or 2nd and 3rd, dont know where the indexing starts) tab. But at least the two tabs are next to each other.

-The behaviour at "open link in new background tab":
when clicked, the new tab will be the last in the list (bottom) while the current tab will be the top which is really annoying when I have multiple tabs open!

So, firstly I would recommend that the current tab should stay where it is in the list. When there is a long swipe from below it should show tabs list focused at the current tab (but the current tab is not taken to the top of the list).
Secondly, the tab opened with "open link in new background tab" from the current tab should be next to the original tab.

I am on mako rc-proposed r550, but this bug is there since quite some time.
webbrowser-app:
  Installed: 0.23+15.04.20160928-0ubuntu1