Autoplay
On FireFox v115, on Mac system High Sierra, 10.13.6. Autoplay setting will not let me remove this 'about:welcome^privateBrowsingld=1' or this 'about:welcome' no matter ho… (続きを読む)
On FireFox v115, on Mac system High Sierra, 10.13.6. Autoplay setting will not let me remove this 'about:welcome^privateBrowsingld=1' or this 'about:welcome' no matter how many times I try. The version on my Mac laptop,129, does not have this or anything. What is this?