Are there people who still do not auto-update their OS and Browser?
How foolish.
One day they will pay a very high price.
Updates break things. It's been that way since the old unofficial Microsoft motto: "DOS ain't done until Lotus won't run"
Firefox updates generally have one (or both) of two purposes - break third party ad and script blockers or add undesired "features". I tolerated the pain of Firefox updates as long as they were well spaced - every 6 months or so as I recall. Then they went to near constant updates - it was too time consuming to have to fix stuff that was being broken on a weekly basis. Back to operating systems: How many Script Kiddies bother with trying to hurt XP users these days. Win7 users will soon enjoy the same benefits.
We live in a world where updates can and do break things and make it even worse. If it ain’t broke don’t fix it.
Nothing like updating a website script only to find out that now half your plugin modules have been depreciated and it destroys your website causing a couple of weeks of work to get it back on line.