>On Windows, there will now be fewer interruptions because Firefox won’t prompt you for updates. Instead, a background agent will download and install updates even if Firefox is closed. How considerate of them, I felt I didn't have enough auto-updating background agents yet.
IMO this is the correct behavior. Programs should never bother the user with prompts or interruptions of any sort unless absolutely necessary. "Do you want to install this security-critical update to your computer's largest attack surface?" does not rise to that level. The answer is obviously yes, so just do it and don't bother the user. There's probably an advanced setting buried somewhere if you _really_ want to tu…
Because updates can introduce breaking changes. And potentially new security vulnerabilities.