Diễn đàn hỗ trợ Firefox

I want my search engine to show on new tabs instead of using the address bar (a very inefficient way to do a search, frankly). For now I either have to use firefox or click on my search bar in the header to get it to come up.

I use two monitors, and I have multiple firefox windows open at once. When I turn on my pc and open firefox, the windows almost randomly position themselves on both monitors, sometimes they are not maximised either. How can I change this behavior so that all my firefox windows open, maximised, on one monitor rather than both?

I Closed the browser and forgot that I had a private one open too. When I went to open the main Firefox window up, my previous session was wiped! I already tried the right clicking plus sign method to no avail. It just brings up the one I had after searching how to bring back the session and then accidentally closed the browser after. Any tips on how to get it back? Why does this happen just because you have a private window open??? Change that ASAP!

In settings it use to say "open links in new tabs" now it just says "Open links in tabs instead of new windows"... what happened to "open links in NEW tab"? That would be the preferred option. When I'm in a tab and there's a link I click on I do not want to lose what I'm currently in, I want the link to open in a NEW tab. This has really gotten annoying!