Also I am running on MX-Linux Wild flower

Firefox cannot handle its own updates. It doesn’t know how to check the repositories and doesn’t have admin privileges anyway. The Update Manager is responsible for all software updates, and applying updates requires root privileges.

“Your browser is being managed by your organization” might look a bit scary but all it means is that Firefox was told to not worry about updating itself.

In the About dialog, “Updates disabled by your system administrator” has the same meaning.

You can check the about:policies#active page to see whether policies are active.

Also, download another copy of Firefox, run it from the folder and see if you have the same issue.

https://www.mozilla.org/en-US/firefox/all/#product-desktop-release

Firefox cannot handle its own updates.

Firefox can most certainly handle its own (internal software) updates if you are using the official Linux builds of Firefox from mozilla.org/firefox/all/ though you also need to make sure the user has read/write permissions for Firefox folder for updates.

This "Firefox cannot handle its own updates" comment was taken from a Mint blog posting about their own Firefox packages. https://blog.linuxmint.com/?p=4259

I don't have an interest why it started and from what I have interes to kill it forever )))

I don't have an interest why it started and from what I have interes to kill it forever )))

On Linux, it can be caused either by a Policy file or by an Autoconfig script.

Policy

Type or paste about:policies in the address bar and press Enter/Return to display that internal page. If the "Active" panel says anything other than "The Enterprise Policies service is inactive." then your Firefox has a policy file.

If the specific policies are a problem for you, this article has information on where to find the file: Customizing Firefox Using policies.json.

AutoConfig

The other possibility is a startup script in a pair of autoconfig files. This article tells you where to look for the files: Customizing Firefox Using AutoConfig. Unlike about:policies, there isn't a convenient tool to interpret what the code in the files is doing, but commonly they will set or lock preferences (the kind you see in about:config) or execute code.

You can try Firefox from the official Mozilla server if you currently use a version from the repositories of your Linux distribution to see if it behaves differently.

• https://www.mozilla.org/en-US/firefox/all/#product-desktop-release

.....