it took a bit of time for me to take serious pride in using other people's work. it's been so much easier to deliver anything since then.

I don't think pride always enters into it, sometimes you just need diversity of thought around a problem.

"We have to reinvent the wheel every once in a while, not because we need a lot of wheels; but because we need a lot of inventors." - Bruce Joyce

I'm curious, why does pride come into the equation?

If the existing implementation is perfectly good, writing your own is either pride, stupidity, or a learning exercise.

I would take for granted that the Firefox developers aren't stupid, and that they have enough interesting work to do that they aren't going to spend time on it as a learning exercise.

Ah, okay. That feels a hyperbolic to be pride or stupidity, rather than just a poor analysis of the efficacy of an existing solution. Thank you for your response.