The funny thing is that from a Linux user's perspective, Google was simply providing a workaround for what should have been the OS's job. On Linux, Firefox's auto-updates are disabled so that the OS can handle that instead.
This is probably the best solution, as it gives you the most control over updates, and applies to all software system-wide. You're not forced to install updates at any time, and you can disable the notifications if you want.
And last I looked, that's how Chrome/Linux works too, at least on Ubuntu. When you download and install the deb, it'll set up apt sources so you get updates through the system.
This is probably the best solution, as it gives you the most control over updates, and applies to all software system-wide. You're not forced to install updates at any time, and you can disable the notifications if you want.