I mean, I like Firefox, but I’d love to see Vivaldi based on Firefox/Gecko. There’s Floorp, which is similar in some ways but it’s more like an Edge built on Firefox than Vivaldi.
Edit: Thank y’all for your answers. :D
I want to link !@[email protected] 's post because it is a similar quesion. https://thelemmy.club/post/718914
I’d imagine because they want as little compatibility issues with their product as possible so they just copy what’s already popular.
Performance, long term assurance. Sorry my brain’s not working RN. That’s all I can think
Gecko was pretty shit performance wise until Firefox quantum in 2017. Back then even Apple decided it’s better to use webkit for it’s browser.
It’s difficult to say exact reasons for each browser. But for Chrome enjoying the dominant position before that, it was better to jump on Chromium as base just for better compatibility with most websites.
Tooling followed soon after