I have a few guesses: Google has marginal incentive to not kill Firefox (antitrust), they have no incentive to make sure they provide a good experience on Fire

I have a few guesses: Google has marginal incentive to not kill Firefox (antitrust), they have no incentive to make sure they provide a good experience on Firefox, let alone test with it. The issue seems to be isolated to the search home page, and Google Search hasn't exactly been associated with "quality" in several years. Internal rot and disinterest gradually chip away at QA.