Please do not assume people are not running current release just because they are lazy and have not upgraded.
The user experience was degraded at FF57 for many individuals who need extensions that will not work with ff>56 or that developers have abandoned out of frustration with Mozilla. When all the extensions I find necessary are functional (or with suitable replacements) I will switch.
There are a couple I sorely miss. Disable Ctrl-Q died, and so did Toggle Animated GIFs. Now I have to keep an extra tab open with a warn-on-page-close handler to prevent Ctrl-Q fat-fingering from killing my session. And I've just disabled video/GIF animations entirely, instead of using the cool extension which let me start/stop them on demand.
I also used to have a cool cookie exporter extension, which was useful in combination with wget for scraping sites that required a login. I admit I haven't searched for a replacement, though, so maybe there is one.
I get the annoyance with deprecating extensions. But seriously the <edit>main</edit> person you are harming by running vulnerable un-patched software is yourself.
If only this was true. People with unpatched software running are prime targets for inclusion in a botnet and then they are damaging other with their reckless behavior.
This is exactly the problem with the culture that's formed around software and the security industry in general --- people are using the excuse of "security" to force other utterly unwanted and hostile changes, and then act surprised and angry when people don't update.
Doubly so when the advice given is basically "bend over and take it" --- especially when Mozilla has made statements like this in the past:
"Users should have the choice of what software and plugins run on their machine."
In any case, I hope NoScript is one of the extensions you're already using, because this is another vulnerability that requires JS to exploit. JS off by default already gets rid of the vast majority of them.
Mozilla has been very destructive, and I have had to restrain Firefox in a number of different ways. It's Updater.app will disregard your wishes and repeatedly download updates over and over again. This happened to me when I had to turn in an assignment and I was on a 2G connection a few years ago. Most of their updates are unidirectional, even though they don't need to be. And major features are quietly removed, as if it is just normal for your car's speedometer to disappear one morning. This ends up feeling like gas-lighting. At least Chrome's updates are small and hard to notice, but Firefox has all the same disregard for users, except they are very clumsy about it. And the official response from them has been that if their updates destroy your profile folder, that you should have made a backup and it was your fault for assuming that their software wouldn't do a destructive update.
The tone-deafness of the comments here is astounding. The fact that these posts are rapidly downvoted further reinforces my point.
It's not just Mozilla, it's the whole "update culture": "you must take these important fixes for remotely-exploitable vulnerabilities, and also all of that other stuff" --- of which everyone would probably want the former, but no one really wants the latter.
When the "choice" of browsers that can view the majority of sites, including advanced JavaScript, is basically between Firefox or the various flavours of Chrom(e/ium), there is no real choice!
tl;dr: To say I am annoying with the state of things is an enormous understatement. The browser culture is getting more and more user-hostile and "security" is being used as an excuse to put users under the noose, this encouragement of "learned helplessness" is insane. Fuck this idiotic "it's for your security" bullshit.
I'm sorry you are getting downvoted. You are absolutely correct. I've gotten in many discussions about this exact same thing on HN. I at one point I had an exchange with someone about terrible bad Pale Moon was because it let users do things like override HSTS settings, and otherwise undo decisions that Mozilla had made.[1]
I actually have highly specialized profiles that make heavy use of XUL addons that I have developed over the years for very specific things, and I hate how careful I have to be that an update won't come and delete them. It would be one line of code to make a backup of a profile before "upgrading" it...
The user experience was degraded at FF57 for many individuals who need extensions that will not work with ff>56 or that developers have abandoned out of frustration with Mozilla. When all the extensions I find necessary are functional (or with suitable replacements) I will switch.