All great changes! I've been using Floorp to have vertical tabs, but I'd gladly switch back to Firefox when its implemented. Profiles have always been a great feature, but had a bad user experience, glad to see its being improved.
Really interested in the local AI. Firefox has been doing interesting work with that recently.
Sidebery is a great FF extension that provides vertical tabs, trees, and groups.
Ever since I was an avid Lynx text only browser user, I've been asking for a complicated ~~privacy invasive (if the AI is remote)~~ (hey neat, it's local!) browser that interacts with me in a nedlessly conversational way. Thank goodness someone is finally cramming AI into my simple web lookups. (/Sarcasm)
So Tree Tabs built in? I've used them for so long, I don't know how other manage without them. Yet I know no one else who uses them, even after I show them. Be interesting see how well the new built in ones work.
This is a most excellent place for technology news and articles.
