On the other hand, I didn't have a problem with tapping the tab select button in the non-beta app, where it's in exactly the same position as it is in Chrome...
How Google win - and they do it with many of their products - is that they bother to make their products just superior enough to the competition, that you basically have no choice but to use their product, unless you want a deliberately inferior experience.
It's not just Chrome vs. Firefox, which I'm very sad about. Another big example for me is on my iPhone. Google's GBoard is simply superior to anything else I've ever tried, and yet I know it's spying on absolutely everything I'm typing on the device (pre-encryption), at all times, and it even bullies me into staying online if I want the keyboard to work fully properly. (It's slower and the prediction stuff doesn't work half as well if I'm in flight mode for whatever reason.)
I kept looking if i missed this obvious feature. I tried to live without it, but Firefox mobile's tab switching just turned out to be a deal breaker for me.
If anyone had some tips: please!! I'd vastly prefer using FF on mobile.