How do I allow Mozilla Firefox to use internet? [closed]

At my school Mozilla firefox is blocked for students, so only teachers could access it. The PCs are running on Linux Gnome. It has nothing to do with the cable, network manager or ifconfig eth0 up. It is only in Mozilla. You think it could be somewhere in Mozilla‘s settings (no proxy is used) .

As I was 12 I went in a IT Academy, where we had the same thing, so we couldn’t play any Flash games. We fixed it, by changing port in Mozilla in the right one, which people have seen once from a teacher.

I am saying it, because I couldn’t find the same option in the settings now.

Any information would help, thanks!

How are Mozilla Firefox passwords encrypted?

As far as I know, current versions of Mozilla Firefox store the saved passwords (encrypted with 3DES) to the logins.json file meanwhile the keys are stored in key4.db (or key3.db in older versions).

If one hasn’t set up a Master Key for the passwords, the key database file can then be accessed. In the database, I’ve encountered an entry that does indeed look like the keys.

------------------------------ |    id    | item1 | item2   | ------------------------------ | password |  ...  |  ...    | ------------------------------ 

So, why possibly are there two 3DES keys in the database? Are they really encryption keys? How can I use them to decrypt the logins.json data? Which keying option is being used?

UBUNTU LIVE CD with .config and .mozilla inside the LIVE ISO

I need an UBUNTU LIVE CD VERSION with my own configuration files on it.
Even an UBUNTU standard distro version is OK. MUST NOT BE MINE PERSONAL.

When I boot with a live distro and copy that inside the /home/ do the LOGOUT AND the LOGIN it works fine, but i’ve to do this every time and that just drives me crazy… and sometimes i forget to bring with me those config files.

So I’m trying to insert

.config and .mozilla inside UBUNTU / LUBUNTU LIVE CD

(that is the config that I already have configured myself from OpenBox, panels, Mozilla plugins etc. and so on).

I’ve looked everywhere and just can’t find the solution. I tryed on my own, but no luck. In worse case scenario, it will not boot. I just don’t know what to touch and what to do.

AND NO, I am NOT INTERESTED TO ASSIGN ANY ADDITIONAL SPACE FOR IT ON LIVE USB (from zero to xyz GB), as you can do that with Pen Drive Linux aka Universal USB Installer and others.

Why? Well from my experience:

  1. Well because it makes it too slow immediately. USB FLASH even if USB 3.0 is too slow for me. It drives me nuts like win10.
  3. I want to inject everything into a RAM (my 16 GB DDR4 works fine with it).


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Mozilla Firefox cannot browse even a local site?

Firstly I’m talking about the default browser Mozilla Firefox installed on Ubuntu 18.10.

This is really really strange. I’ve tried publishing a local directory-listing HTTP server at localhost using python3 like this:

sudo python3 -m http.server 80 

After that the simple HTTP server runs fine and I can test it by browsing the directory from another machine in the same LAN.

Well however right inside the Ubuntu machine, I cannot browse that localhost site, the waiting indicator in the page tab just runs forever before throwing out The connection has timed out, here is what I’ve tried:

http://localhost http://[ip_address] 

nothing worked. Of course I’ve tried turning off all proxy as well.

There must be something wrong with this machine’s network. Actually it has an Internet connection (LAN), it can access Google (and some domestic sites via proxy). However almost other sites are not accessible (so I can’t even run basic updates from Ubuntu server). It’s just like an offline/disconnected machine.

I can still ping the localhost (as well as the IP).

I’ve even tried checking port status using command sudo ufw status, and it shows this:

To                    Action            From --                    ------            ---- 22/tcp                ALLOW             Anywhere 80/tcp                ALLOW             Anywhere 23/tcp                ALLOW             Anywhere 443/tcp               ALLOW             Anywhere 22/tcp (v6)           ALLOW             Anywhere (v6) 80/tcp (v6)           ALLOW             Anywhere (v6) 23/tcp (v6)           ALLOW             Anywhere (v6) 443/tcp (v6)          ALLOW             Anywhere (v6) 

So it looks OK, isn’t it?

I’m new to Linux as well as Ubuntu and really I’ve never encountered something like this in Windows (localhost access should always be OK, but this time access from outside is OK whereas from inside not OK, so ridiculous).

I hope someone here could give me some suggestion to solve this, but please note that my machine is nearly offline (due to something wrong because it still has a working Internet wired connection proved by other working machines in the same LAN).