So many responses to users who were complaining that they wanted features from Internet Explorer were met with "then use Internet Explorer, we but we refuse to embrace their vision of the web".
And like I said in prev post, extensions like IE Tab would let users appropriate proprietary technology without embracing it. And the extension architecture was powerful enough to do stuff like that. They should have tried doing something like that with Chrome, while keeping their technology.
In 2009, I would watch Hulu on Linux using instructions I found on a forum, which used a python scraping script and fed it to my Firefox VLC plugin. It was the first solution that the community came to for watching Hulu. That was the culture back then.
So, I can see why the big platforms hated it so much. Such a powerful extension architecture and the culture around it had big potential to undermine their platforms.
There were so many powerful extensions that gave me direct access to the content I wanted, which are impossible to use now.
Yes, it had security problems, but those are solvable. Just on my own, I cobbled together some fairly good sandboxing systems. I wish they had just worked to improve XUL.
Firefox is dramatically faster now, and you still have full abilities to restrict content loading with WebExtensions like uBlock Origin and NoScript. What functionality relating to restricting content loading are you missing?