after the recent update I could no longer 'like' articles or comments on substack, and I couldn't post comments, either. looks as though there was a fix the next day, because I was again able to 'like' and comment...but then late that night I was suddenly back to square one. exactly the same issue. it's now been a couple of days and I still can't 'like' or comment on substack. this same thing happened after an update many months ago, and after a week or two I just switched to opera. checked firefox again in september or october and it was working so I stayed. I'd like to keep using firefox but the substack problem is annoying. why did it work for about eight hours and then stop again? it seems as though substack is the poor step-child. hope you can get this fixed! because having to change browsers is also annoying... thanks!