It was useful for me, Firefox user for years… And please, the reasons they gave…
Effort optimization: By focusing on other top browsers (Google Chrome and Microsoft Edge), we can reach a broader audience while maintaining efficiency. <-- If you leave a part of your community, no…
Changing user needs: User preferences and requirements shift over time, and we want to meet those needs efficiently. <-- So, don't stop it on Firefox?!
Technological advancements: As technology evolves, we need to adapt and allocate resources effectively. <-- What does this even mean, and what does this have to do with Firefox?
Maybe it's me, I certainly am too idiot to understand. But I strongly disagree with the discontinuation and those vague and imprecise “reasons”.