Can Tab Groups Manager relinquish control of opening of new tabs?

Before submitting the issue, please check that your version of TabGroups
Manager is the lastest stable one. (Check it in Firefox Extensions).

What steps will reproduce the problem?

When I try to open a new tab using Open in New Tab or use the middle mouse 
button to open a new tab, the tab always opens at the bottom, instead of within 
the tree as is expected.

What is the expected output? What do you see instead?
The tab should open as a sibling or child tab of the current tab.

System Info:
What version of TabGroups Manager are you using? 0.15.2014120101

What Operative System are you using? 32 or 64 bits?
Ubunty 12.04 32 bit

What version of Firefox are you using?
Firefox 35
Are you using any other tab extension like Colorfull tabs, Multiple Tab
Handler, TabMix Plus..? Tree Style Tabs, Bar Tab Lite, All Tabs Handerl

Please provide any additional information below and screens capture if
possible.

Original issue reported on code.google.com by vfcli...@gmail.com on 9 Apr 2015 at 7:14

BrenBarn / tabgroupsmanager

Can Tab Groups Manager relinquish control of opening of new tabs? #109