Also had these issues when working on my previous job's extension. The Firefox review process was a real nightmare to work with. Same heavy delays and misunderstandings your mentioned. Eventually the company just stopped updating the Firefox extension as often since usage was low and the review process was such a pain. Unfortunate for me, as the only engineer (maybe employee) at that company that used Firefox.
Same here. We even had a special "mini" Firefox version that didn't require any additional Javascript build step, to make the review easy. But there were so many issues with the review and so few users that we just decided to give up.
