Frankly, I don't want to choose firefox. Their priorities are utterly misplaced.
I can't believe people don't talk about the dark gtk theming bug more often. It's one of the most common firefox questions on stackoverflow: If you have a dark gtk theme, like Arc-dark or Adwaita-dark, then Firefox randomly colors certain web page elements (usually text boxes) dark to match your desktop theme.
Almost always resulting in black text on a black background. There are examples of this misbehavior on mozilla.org
THIS BUG HAS BEEN OPEN FOR 18 YEARS https://bugzilla.mozilla.org/show_bug.cgi?id=70315
If something so obvious and so easy (why not make white the default background color, like every other browser) has gone unfixed for so long, despite its manifestation on their own home page, then why wouldn't I expect that there are tons of other common sense things that Mozilla has totally ignored, waiting for me to stumble upon them like so many land mines?