Aris wrote:No idea, if TST is the reason. From what I've read on the forums a lot tab add-ons started to have issues with Fx since 33 release.
Try a new test profile...
(1) ... with nothing installed.
(2) ... with only CTR installed to be sure its CTR.
The easiest way to do this is Portable Firefox. It won't change your current configuration or profile and can safely be removed afterwards. See first post for more info.
Thanks I just tried and it seems like CTR is working fine and it is not the cause of the problem. Sorry for wasting your time.