I hope they never give up, as it's been my favourite browser since its inception. Sure they messed stuff up along the way and not every update has been equally great, but I love using Firefox over any Chromium based browser and been doing so for almost 20 years now.
After the Android Firefox rewrite in ~2020 you don't have 99% of Firefox extensions available on Android - only a short list of selected mainstream ones, like Ublock Origin.
If you want to install any other not in the blessed list you need to jump through a horrendous sequence of hoops every time:
