I do miss the tab bar, it would be great to have it on the tablet. I can't comment on how differently the browser behaves now regarding storing loaded pages in memory though, because most of the time I'd have an underpowered phone that would kick out everything out of memory when switching apps anyway.
now that's just rose-tinted glasses speaking. I remember how absolutely abysmal old Firefox' scrolling was, and how they've claimed multiple times that they've improved it but it was still horribly sluggish compared to Chromium browsers. I've been using Firefox Preview (and then Nightly after enough performance improvements have landed on it) for about a year just to have acceptable experience on mobile.
I don't know who said that, but the sentiment resonates very strongly with me. "I remember when the internet was more than five big websites, with each one just posting content from the other four".
edit: found it. "I'm old enough to remember when the Internet wasn't a group of five websites, each consisting of screenshots of text from the other four."
Some have pointed at Kape’s history. The company had previously operated under the name Crossrider and was active in the advertising space. Among other things, it installed toolbars with ‘potentially unwanted software.’ While the company has since switched to a focus on cybersecurity, this past has made some people suspicious.
you need to change the "Preferred video quality" in the preferences to "DASH (adaptive quality)", then you'll be able to pick higher resolution.