They should turn fingerprinting to max and install uBlock origin by default.

It might mean millions of FF users would suddenly struggle with captchas, but it might also mean that site creators just stop using reCaptcha and similar.

Or, most 'regular' users will switch to Chrome because reCAPTCHAs work better in that browser. Firefox needs to make sure they're not going to ruin the user experience by breaking sites like this

I'm guessing they would lose their financing from Google by adding UBlock.

I don't know the terms but surely there are enough parties willing to pay them- MS would love to shoot with gun on fx shoulders.

The engineering effort required to implement this feature is better spent in doing useful things.

Microsoft just switched the rendering engine for Edge to Google's rendering engine, helping increase the monoculture.

Despite all Microsoft's posing and snuggling up to the Open Source world, they're just as bad as Google and Facebook if given the chance. (And they have been as bad in the past.)

That's just a bet, I doubt Mozilla is willing to blast google on the chance there is someone willing to pay them, they'd probably rather have a sound financial cushion from non-google before going after google.