Have you tried rebuilding the XPI in a different way or trying a different XPI? I would guess that your addon is broken, as it works for me: https://postimg.cc/

Have you tried rebuilding the XPI in a different way or trying a different XPI? I would guess that your addon is broken, as it works for me: https://postimg.cc/9rkbMd7v https://postimg.cc/9rkbMd7v I understand the frustration and would also like improved control, but I understand firefox preventing this in the "normal" edition as it's very common for trojans to install unwanted extensions manually by fiddling with the profile files, I've had to remove them manually from family computers in the past.