Sometimes I feel like Firefox wants to be very visible while you're using it so that you know you're using Firefox. A great browser should disappear into the background most of the time.

I have no problem with highlighting a new feature by default, but making it impossible to remove doesn't win you any favors. I feel like there are a lot of tab management things that Firefox is very proud of and wants people to use that are just not that useful. Especially when they haven't finished implementing vertical tabs yet, which has been a requested feature for a decade.

Don't get me wrong, I love Firefox, and I think it's a great browser, but these little bad PR missteps make it really frustrating.