I feel like Mozilla's decision not to prioritize support for embedding Gecko ended up being a strategic error in the long-term. Other browsers using Blink don't

I feel like Mozilla's decision not to prioritize support for embedding Gecko ended up being a strategic error in the long-term. Other browsers using Blink don't add directly to Chrome's market share but having it embedded everywhere means that its quirks don't end up being perceived as Chrome-specific. If five different browsers all behave the same way and the sixth one differs, then the sixth one ends up looking like the odd one out, even if the reason the other five behave the same is that they're all sharing code.