Sounds like you updated FireFox & the plug-ins/add-ons have been disabled.
Go to Tools menu & choose Add-ons & see if any have been disabled. In some cases you might need to get an update for these plug-ins for them to work with a new version.

I do recall a message from FireFox saying they were disabling some add-on abilities. I found this https://blog.mozilla.org/addons/2017...n-firefox-esr/

As for your home-page. You might need to go to Tools menu, Options & change the default Home Page.