As a Firefox mainliner for 'legacy' reasons to be fair, I often have to revert to Chrome to get sites to work. I guess there are a lott of dev shops out there that just test on Chrome/Edge (and maybe Safari)
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The craziest is its permissive same origin policy compared to Chrome/Safari, like how `window.top.location.href = 'https://example.com';` works from inside a cross origin iframe to redirect the parent.