I am hanging on! At home I only use Firefox. At work, unfortunately, I need Chrome for a few things that do not work well with Firefox (most Google products), but for everything else I use Firefox.
IMHO, that Firefox can only really stay free if it is supported by donations (i.e. people like us who use it). Anything else will lead to various things that either push people away or make less free - probably both.
Could be. Pity there is no way to donate to Firefox. You can only donate to Mozilla for 'mission to keep the Web open and free', with an unknown fraction going to Firefox development. People have been deliberately disenfranchised from voting with their wallets for decades.