I can't see a difference on my iPhone but Firefox on Linux (Ubuntu GNOME) looks different; It seems Firefox is using Cantarell rather than Ubuntu which I was used to seeing. I can't get Droid Sans to load when I try to force it. It's alright though, I could probably get used to it.
☕ David Antoine
Is the font bigger ? It's a easier to read I would say... Edit : of course it's bigger, you hinted at it, I skipped over your second question like an idiot... Would it be possible to edit replies eventually ? Even for a finite period of time. Would be nice to correct mistakes without the need to copy/delete/reply again...