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I have setup a Kali Linux VM inside VirtualBox and I updated it using the following command.

sudo apt-get update

Afterwards, I ran the following command to install owasp-mantra-ff and its dependencies.

sudo apt-get install owasp-mantra-ff

sudo apt-get install xterm

After successful completion, once I run the owasp-mantra-ff, an error window pops up which is saying the following.

Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.

In the terminal, the following could be seen.

owasp-mantra-ff
firefoxportable:Debug/Info: 0=./OWASP Mantra
firefoxportable:Debug/Info: dir=/usr/share/owasp-mantra-ff
firefoxportable:Debug/Info: Current Dir=/usr/share/owasp-mantra-ff/Mantra

(process:5813): GLib-CRITICAL **: 08:00:11.464: g_slice_set_config: assertion 'sys_page_size == 0' failed
Welcome to the Linux version of firefox 18.0 in portable mode. Feedback is NOT disabled.
firefoxportable:Debug/Info: Profile Directory already exists!
firefoxportable:Debug/Info: firefox is now closed.
./OWASP Mantra: 51: yaf-splash: not found
firefoxportable:Debug/Info: firefoxportable is now closed.

Additional Information:

cat /etc/os-release 
PRETTY_NAME="Kali GNU/Linux Rolling"
NAME="Kali GNU/Linux"
ID=kali
VERSION="2022.1"
VERSION_ID="2022.1"
VERSION_CODENAME="kali-rolling"
ID_LIKE=debian
ANSI_COLOR="1;31"
HOME_URL="https://www.kali.org/"
SUPPORT_URL="https://forums.kali.org/"
BUG_REPORT_URL="https://bugs.kali.org/"

Any valuable suggestion/ solution to troubleshoot this issue is highly appreciated. Thanks in advance.

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  • Did you do all the dependencies? kali.org/tools/owasp-mantra-ff/….
    – John
    Apr 14, 2022 at 16:35
  • @John Thanks. Yes, I installed the only dependency required, xterm. Is there any other dependency which is required?
    – Lilan Mihiranga
    Apr 14, 2022 at 17:11
  • There was a list of dependencies in the article. I have not installed owasp myself so I am not sure what in particular.
    – John
    Apr 14, 2022 at 17:14
  • @John The article that you are referring to, states only one dependency which is xterm.
    – Lilan Mihiranga
    Apr 14, 2022 at 17:17
  • $ firefox -V -> Mozilla Firefox 99.0 - so? Really "18.0"?
    – Hannu
    Apr 14, 2022 at 17:18

1 Answer 1

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Running the owasp-mantra-ff command in the root terminal solved the issue for me.

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