I-Firefox Isithangami Sokwesekwa

I'm currently on a very old version of Firefox simply because the new versions, each time I try the latest versions, seem to not have the function the old one has. Remembering the websites I put into the address bar. The version I am currently using did have a issue with shuffling the order of the sites based on 'use' but setting Firefox to Private mode kept the websites locked in order and did not make them shuffle if one was clicked more often than another. Is this something I can do on the current version because I tried and looked for a way to do this recently but I kept getting 'autofill' results from google when I just want to be in Private mode, have the websites I frequent be the only ones listed when I click the address bar and not have them shuffle or have any other website I'd type into the bar not add itself to the list. If this is or isn't possible let me know.

Hyatt.com can be loaded on other browsers but not on Firefox. There is just a blank page with no error message. There is an archived thread on support.mozilla.or called "hyatt.com". The suggested solutions don't work or are too complicated. So please solve the problem. And STOP archiving threads that are still an unsolved problem! Am using Win8.1 and auto-updating Firefox.

When switching from one tab to another, streaming stops and video won't play in background. I've tried all the main fixes suggested I've found. Nothing worked. Please help! Will be using alternate browser until fixed as it's too unwieldy for me to use this way.