For those who want to use Firefox with added security and privacy there is Arkenfox
For those who want to use Firefox with added security and privacy there is Arkenfox
Firefox privacy, security and anti-tracking: a comprehensive user.js template for configuration and hardening - arkenfox/user.js
I prefer Librewolf as it is easier and simpler to use
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Yes, but that is not what I'm talking about. What I mean is that when Firefox is running and you go to change some setting in say, Settings page, then the new value for that preference is stored into prefs.js (at latest on Firefox shutdown, it might remain only in-memory for some time I'm not sure). Anyway, the new value persists only for that browser session, because on next startup whatever value was set by user.js will override it.
Have you independently confirmed this?
What is preventing
user.jsfrom doing exactly what you're describing right now on your system?Sure. For simplified example have only the following in your
user.jsfile:user_pref("browser.tabs.warnOnClose",true);- Start Firefox
- Observe that the pref is indeed true
- Go to Setting > General, observe that
Confirm before closing multiple tabsis checked - Uncheck the option
- In about:config observe that
browser.tabs.warnOnCloseis now false - Restart Firefox
- Observe that the pref is again set to
true
The reason is also very simple. Firefox will never write anything to
user.js- thus any changes you do at runtime will only be stored toprefs.js. However,user.jsalways overridesprefs.jsat startup.Understood, thanks. So on a clean install, I'm assuming
user.jsis either empty or missing, correct?Yes. Firefox doesn't create user.js file itself - if you want one then you need to create it yourself either manually or with some tool. Also, I've seen some "security" software create user.js file without notifying the user about it...