Hello,
I will check it out!
So, what exactly happens, is the page opened in one of the existing windows instead of new window? Does it happen only when you start Firefox? Or even when your PC wakes up from sleep?
And was it working for you before?
Also, could you write me what Firefox version and Operating system are you using?
You can also write my to my support email.
Thanks!
Best regards,
Juraj Mäsiar