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I have a problem initiating telnet sessions (telnet://IP) from Firefox and Chrome.

  • With Chrome I have the following problem: When I click the telnet link, appears the "External Protocol Request" prompt with xdg-open but when I click "Launch Application" nothing happens.

  • In Firefox's case I followed the tutorial bellow and mere, but also when clicking telnet links nothing happens. Ubuntu 14.04 Mozilla Firefox Telnet Error

I am using Ubuntu 14.10 and latest version of Firefox and Chrome.

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  • Do you try this add-on for mozilla? – 2707974 Mar 23 '15 at 13:17
  • I know this one. It is a nice add-on but it is not what I am familiar with. I am in transition from windows to Ubuntu and this is a thing that I use every day. – Novelli Norbert Mar 23 '15 at 13:31
  • Please edit your question and provide us with which answers you tried on the duplicate question you linked to and what your results were. – Elder Geek Mar 23 '15 at 14:13
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    Why wouldn't you just 'telnet' with the command line? – Thomas Ward Mar 23 '15 at 14:15
  • Which program to use for Telnet? – A.B. Mar 23 '15 at 14:16
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I'm not entirely sure why you're using telnet via a web browser - it makes little sense to do this. So, we need to use an actual telnet command rather than hack away at Firefox to make it work with 'telnet'.


You stated in comments you used to use PuTTY for telnet.. PuTTY actually exists in the repositories and you can use it. This command installs it: sudo apt-get install putty

You would then run it from the dash panel on Unity.


There is also an available telnet program in the repositories, and it should be installed by default. telnet gives you a telnet interface via the command line and ONLY the telnet interface (you run it from inside of the Terminal). You can install it by sudo apt-get install telnet if your system says it is not installed. (This means you won't need PuTTY which looks odd on *nix in the way it formats things, and would work with the terminal in a better way, so this is the suggested method to telnet.)

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  • Pretty sure telnet comes standard. – Seth Mar 24 '15 at 19:21
  • @Seth updated to include that it's supposed to be installed by default (I checked the manifest of the images, just to confirm) but if it says it's not then you have the command there to install it. – Thomas Ward Mar 24 '15 at 19:51
  • I happen to manage 300 switches that are monitored via a web interface so I constantly have at least 2 - 3 consoles opened. The problem is that I can't remember the IP's or hostnames to manually telnet to the switches so it is more simpler to click a little icon and i'm in. – Novelli Norbert Mar 25 '15 at 7:30
  • @NovelliNorbert And the web interface uses telnet? How old are these switches? What brand/model? And why don't you keep documentation on hostnames/IPs like you should be doing? – Thomas Ward Mar 25 '15 at 11:48

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