Firefox has just updated tab shows each time you start Firefox

https://support.mozilla.com/en-US/kb/Firefox%20has%20just%20updated%20tab%20shows%20each%20time%20you%20start%20Firefox

if you want to manage your Firefox and Add-ons Updates manually

-> Tap ALT key or press F10 to show the Menu Bar

-> go to Tools Menu -> Options -> Advanced -> Update section -> Remove Checkmarks from Firefox and Add-ons -> When updates to Firefox are found select Radio Button Option1 Ask me what i want to do

-> click OK on Options window

Check and tell if its working.

Thanks for the reply. However, that does not solve the problem. Firefox persists in opening that "what's new" page anyway, and it persists in telling me my Firefox is up to date. Somewhere, in some obscure setting, Firefox is set to go open that page whether I want to see it or not.

Any other ideas?

did you check the suggestions mentioned in the article i posted in my previous post ??

Thank you, yes, I tried all of that first. I tried it again after your posting, just in case I missed something. Nada.

Preferences are not saved

https://support.mozilla.com/en-US/kb/Preferences%20are%20not%20saved

Check and tell if its working.

Okay, thanks. This looks more like what I am experiencing. I will give this a try and report back.

Okay. I've finally got a bit of time where I can give this a try. Gimme a minute. Okay, that worked: User.js file overriding preferences

I edited the .js file, deleting 3 lines specifically. These 3 dealt with browser homepage, including 2 that were setting homepage overrides. Closed the browser first, opened the .js file (used Notepad++), made the deletion, saved it, and then opened browser once more.

Ta-da! It worked just fine this time. Thank you, sir.