1 files changed, 90 insertions, 29 deletions

diff --git a/README.md b/README.md
index 33b23f418..e52a02d34 100644
--- a/README.md
+++ b/README.md
@@ -94,9 +94,49 @@ https://unparalleled.eu/blog/2021/20210208-rigged-race-against-firejail-for-loca
 
 ## Installing
 
-Try installing Firejail from your system packages first. Firejail is included in Alpine, ALT Linux, Arch, Artix, Chakra, Debian, Deepin, Devuan, Fedora, Gentoo, Manjaro, Mint, NixOS, Parabola, Parrot, PCLinuxOS, ROSA, Solus, Slackware/SlackBuilds, Trisquel, Ubuntu, Void and possibly others.
+### Debian
 
-The firejail 0.9.52-LTS version is deprecated. On Ubuntu 18.04 LTS users are advised to use the [PPA](https://launchpad.net/~deki/+archive/ubuntu/firejail). On Debian stable (bullseye) we recommend to use the [backports](https://packages.debian.org/bullseye-backports/firejail) package.
+Debian stable (bullseye): We recommend to use the [backports](https://packages.debian.org/bullseye-backports/firejail) package.
+
+### Ubuntu
+
+For Ubuntu 18.04+ and derivatives (such as Linux Mint), users are **strongly advised** to use the [PPA](https://launchpad.net/~deki/+archive/ubuntu/firejail).
+
+How to add and install from the PPA:
+
+```sh
+sudo add-apt-repository ppa:deki/firejail
+sudo apt-get update
+sudo apt-get install firejail firejail-profiles
+```
+
+Reason: The firejail package for Ubuntu 20.04 has been left vulnerable to CVE-2021-26910 for months after a patch for it was posted on Launchpad:
+
+* [firejail version in Ubuntu 20.04 LTS is vulnerable to CVE-2021-26910](https://bugs.launchpad.net/ubuntu/+source/firejail/+bug/1916767)
+
+See also <https://wiki.ubuntu.com/SecurityTeam/FAQ>:
+
+> What software is supported by the Ubuntu Security team?
+>
+> Ubuntu is currently divided into four components: main, restricted, universe
+> and multiverse. All binary packages in main and restricted are supported by
+> the Ubuntu Security team for the life of an Ubuntu release, while binary
+> packages in universe and multiverse are supported by the Ubuntu community.
+
+Additionally, the PPA version is likely to be more recent and to contain more profile fixes.
+
+See the following discussions for details:
+
+* [Should I keep using the version of firejail available in my distro repos?](https://github.com/netblue30/firejail/discussions/4666)
+* [How to install the latest version on Ubuntu and derivatives](https://github.com/netblue30/firejail/discussions/4663)
+
+### Other
+
+Try installing Firejail from your distribution.
+
+Firejail is included in Alpine, ALT Linux, Arch, Artix, Chakra, Debian, Deepin, Devuan, Fedora, Gentoo, Manjaro, Mint, NixOS, Parabola, Parrot, PCLinuxOS, ROSA, Solus, Slackware/SlackBuilds, Trisquel, Ubuntu, Void and possibly others.
+
+Note: The firejail 0.9.52-LTS version is deprecated.
 
 You can also install one of the [released packages](http://sourceforge.net/projects/firejail/files/firejail), or clone Firejail’s source code from our Git repository and compile manually:
 
@@ -256,40 +296,61 @@ INTRUSION DETECTION SYSTEM (IDS)
               as it contains running processes.
 `````
 
+### Network Monitor
+`````
+       --nettrace=name|pid
+              Monitor TCP and UDP traffic coming into the sandbox specified by
+              name or pid. Only networked sandboxes  created  with  --net  are
+              supported.
+
+              $ firejail --nettrace=browser
+              9.9.9.9:53              =>      192.168.1.60    UDP: 122 B/sec
+              72.21.91.29:80          =>      192.168.1.60    TCP: 257 B/sec
+              80.92.126.65:123        =>      192.168.1.60    UDP: 25 B/sec
+              69.30.241.50:443        =>      192.168.1.60    TCP: 88 KB/sec
+              140.82.112.4:443        =>      192.168.1.60    TCP: 1861 B/sec
+
+              (14 streams in the last one minute)
+
+`````
+
 ### Profile Statistics
 
-A small tool to print profile statistics. Compile as usual and run in /etc/profiles:
+A small tool to print profile statistics. Compile and install as usual. The tool is installed in /usr/lib/firejail directory.
+Run it over the profiles in /etc/profiles:
 ```
-$ sudo cp src/profstats/profstats /etc/firejail/.
-$ cd /etc/firejail
-$ ./profstats *.profile
-    profiles                    1167
-    include local profile       1167   (include profile-name.local)
-    include globals             1136   (include globals.local)
-    blacklist ~/.ssh            1042   (include disable-common.inc)
-    seccomp                     1062
-    capabilities                1163
-    noexec                      1049   (include disable-exec.inc)
-    noroot                      971
-    memory-deny-write-execute   256
-    apparmor                    693
-    private-bin                 677
-    private-dev                 1027
-    private-etc                 532
-    private-tmp                 897
-    whitelist home directory    557
-    whitelist var               836   (include whitelist-var-common.inc)
-    whitelist run/user          1137   (include whitelist-runuser-common.inc
+$ /usr/lib/firejail/profstats /etc/firejail/*.profile
+No include .local found in /etc/firejail/noprofile.profile
+Warning: multiple caps in /etc/firejail/transmission-daemon.profile
+
+Stats:
+    profiles                    1176
+    include local profile       1175   (include profile-name.local)
+    include globals             1144   (include globals.local)
+    blacklist ~/.ssh            1050   (include disable-common.inc)
+    seccomp                     1070
+    capabilities                1171
+    noexec                      1057   (include disable-exec.inc)
+    noroot                      979
+    memory-deny-write-execute   258
+    apparmor                    700
+    private-bin                 681
+    private-dev                 1033
+    private-etc                 533
+    private-tmp                 905
+    whitelist home directory    562
+    whitelist var               842   (include whitelist-var-common.inc)
+    whitelist run/user          1145   (include whitelist-runuser-common.inc
                                         or blacklist ${RUNUSER})
-    whitelist usr/share         609   (include whitelist-usr-share-common.inc
-    net none                    396
-    dbus-user none              656
-    dbus-user filter            108
-    dbus-system none            808
+    whitelist usr/share         614   (include whitelist-usr-share-common.inc
+    net none                    399
+    dbus-user none              662
+    dbus-user filter            113
+    dbus-system none            816
     dbus-system filter          10
 ```
 
 ### New profiles:
 
 clion-eap, lifeograph, io.github.lainsce.Notejot, rednotebook, zim, microsoft-edge-beta, ncdu2, gallery-dl, yt-dlp, goldendict, bundle,
-cmake, make, meson, pip, codium, telnet, ftp, OpenStego, imv, retroarch, torbrowser
+cmake, make, meson, pip, codium, telnet, ftp, OpenStego, imv, retroarch, torbrowser, CachyBrowser