Try the ESR release. It will keep the changes/updates to a minimum but you'll still get security fixes.
All my add ons got disabled and many will never get updated
Why do people here feel the need to down-vote personal opinions? So their preference is to not like the new release and they commented as such. Do we really need to down vote someone because they have a differing view?
I didn't downvote but their comment contributes nothing to the conversation. Why don't they like it? What are their issues?
There's not actually anything forcing you to upgrade should you not want to.
Except that the web browser is the single largest attack surface on nearly all computers, and refusing to update it is pretty much explicit consent to your computer being used as raw material for botnets, or worse.
exactly. Web browser, and in second place, the operating system itself
You can always move to a smaller, slower computer.