Glad your problems solved, but just in case somebody else finds their way here with a similar problem here’s my two penneth-
I use FF (FireFox) and love it and wouldn’t be without it. Having said that, I have had my problems in the past but there is a wealth of information and help if you ‘Google’ it.
For the specific problem of homepages, I have two pages set as my home pages because I like it that way- Discovery Channel and Tamworth Freecycle. The easy, failsafe way to set your homepage is to navigate to the page(s) you want to use, go to tools-options and the ‘main’ tab. In later versions there is a drop down box ‘When Firefox Starts’ that gives the options of using your selected page, a blank page or to show windows and tabs from last time. (Don’t use this one if you have internet banking open for security reasons). Then there is a box in which you can type the address of your preferred page (which will be ignored if you choose blank page or open tabs in the drop down box). Alternatively, before opening the dialogue box, navigate to your preferred page(s) and below the home page box are three buttons. Click ‘use current pages’ and whichever you have open will open with Firefox each time it starts.
For those who like to ‘go under the hood’ you can type ‘about:config’ (without the quotes) into the address bar and you will get a warning. Click ‘I know what I am doing’ (or something like that- it changes with different versions) and you will be presented with a list of personalisations you can make similar to this-
View attachment 48758
There is information about what you can do here-
https://blogs.techrepublic.com.com/10things/?p=719
and here
https://kb.mozillazine.org/Firefox_:_FAQs_:_About:config_Entries
If you’re like me, you’ll be in there modifying how FF works like a shot! And you will be surprised at what you can actually do. It is one of the reasons I love FF. It is really very customisable. I am so used to my setup, I really dislike using other folks browsers!
I hope this has been of help. At least I hope somebody finds it interesting!