pidgin can't open links send in a conversation

Hello every one:

For some reason I can't open links present on a conversation in pidgin. Using pidgin -d in terminal, the following message is shown:

executing xdg-open (async)

But nothing happens.

I have run xdg-open next to a url in terminal and it opens fine.

Trying to specified manually the URL of the abrowser binary (/usr/bin/abrowser) in pidgins preferences returns the following message:

Failed to execute child process "abrowser" (Permission denied)

¿Any one that could help me?

P.S. I found a page that mentioned something about a program called firejail that may be causing the problem but I don't think I have it installed. I couldn't find a directory with name firejail in .config and I don't thing trisquel has it installed by default does it?

Thank you.