> I admire the irony of calling Firefox a Chrome clone when Firefox far predates Chrome.
You are right about the technical details, but my intention was to compare it from a non-technical user's perspective. For the non-technical user, modern Firefox is a Chrome clone (and strives to be that) with a very similar UI. The browser engine being different is a technical detail that isn't relevant to the average user who doesn't even know what a browser engine is, and they are not aware (and don't care) about Firefox's history. Stock Firefox is very similar to Chrome and Mozilla wants it to be that way, having removed many features that differentiated it in the past.
> but when the market discriminates towards you so that it's impossible to get users it doesn't matter how good your product is
Potentially, but you can't say for sure that market discrimination and anti-competitive practices are what is holding Firefox back when there are no compelling reasons for a non-technical user to use Firefox over Chrome, so I disagree with the argument that anti-competitive practices are what is holding Firefox back - Mozilla is holding Firefox back by not actually making it a better product to the eyes of a non-technical user (ignore the fact that FF can be a better product with enough customization & add-ons - people competent enough to do so already use Firefox and are its only remaining users).
When stock Firefox is good enough to appeal to and impress non-technical users out of the box (such as by having good, built-in ad-blocking), I will believe in the anti-competitiveness argument. Until then, my opinion is that it's yet another excuse for Mozilla to waste time & resources on anything but actually building a good browser.