r3dfox 128.4.0esr bookmark sidebar disappears after browser restarted

[informatorius]

When I open bookmark sidebar and then close and reopen r3dfox 128.4.0esr then bookmark sidebar disappears. I have to open it manually. It should stay opened. Or the last state when browser closed should be same state when browser opened again.

Windows 7 64bit latest patches

[K4sum1]

I apparently had this open, buried in my browser. I meant to get to this earlier, but I forgot. If this is stock behavior, (if it happens with stock Firefox 128.4.0esr with VxKex), I don't want to touch it.

[informatorius]

No this is not stock behavior. It works with stock Firefox 128.4.0esr with VxKex.