Problem: Arbitrary limit on themes with my Firefox Sync I wasn't aware or notified of (August 20, 2018)
Yesterday evening, I added several themes of Maryland and Washington, DC to Firefox 61.0.2 Stable. I just left feedback saying Firefox makes me sad since all the themes I had with Firefox Sync went away without any kind of notification, presumably because of a limit on how many themes I can sync across devices I wasn't aware of. I want this limit upped, and to be notified when I've reached this limit. I also added many add-ons, the majority of which I've disabled immediately just to save them for when I can use them on a newer 15.6" FHD Dell Inspiron 2-in-1 come 2020, 2021, or 2022 without having to deal with hangs, freezes, or crashes in Firefox.