127.0 Firefox Release June 11, 2024
Imacri Good catch even portable Firefox 127.0.2 has the same problem.. from what I have seen people are there worst enemy.. on Tuesday updated a first cousin windows 10 computer the same problem not doing updates! Firefox not updated to the latest version even with automatic update turned on gets a update Firefox popup dismisses update... gotta do some outher stuff. Same thing with windows 10 OS updates...
It also appears that the two options at Settings | Browsing | Recommend extensions as you browse and Recommend features as you browse were both automatically re-enabled when Firefox updated to v127.0.0.
Kudos to Bob99 for reporting this in post # 2680204 of the AskWoody forum. So far this as been confirmed in desktop builds of Firefox v127.0.0 and Firefox ESR v115.0.2 released on 11-Jun-2024, but not in Portable builds of Firefox.
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Dell Inspiron 15 5584 * 64-bit Win 10 Pro v22H2 build 19045.4412 * Firefox v127.0.0 * Microsoft Defender v4.18.24050.7-1.1.24050.5 * Malwarebytes Premium v5.1.5.116-1.0.1252 * Macrium Reflect Free v8.0.7783
And so it begins.
I updated to Firefox v127.0.0 today and closed my browser, and the next time it was opened I saw this nag asking me if I want to configure Firefox to automatically load at Windows Startup.
I wonder how many times I'll have to click "Not Now" before this finally disappears? 
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Dell Inspiron 15 5584 * 64-bit Win 10 Pro v22H2 build 19045.4412 * Firefox v127.0.0 * Microsoft Defender v4.18.24050.7-1.1.24050.5 * Malwarebytes Premium v5.1.5.116-1.0.1252 * Macrium Reflect Free v8.0.7783