Thank you for posting here (and on the Wire forums, too).

While I have no immediate answer, I have a question that could help narrow down the reason: have you tried opening links in Wire using a different browser as a default?

Does your Firefox show any special way to handle Wire links in the Applications section of the settings?

Also, I wonder if killing the (clearly unresponsive, from your description) Firefox process after clicking the Wire link could help.

Thank you for using Firefox!

Here we go:

1. I downloaded and installed Chromium and set it as default browser. I closed Chromium and opened Wire. I clicked on the YouTube link and Chromium was launched, unlike Firefox. While Chromium was launched, I clicked on the link again and it was redirected properly, just like Firefox.

2. Below are two screenshots about my Applications settings. I didn't notice anything special about opening links in Wire. Haven't checked that DRM thing, yet. Not sure about it. Wonder if it could help somehow. (?)

3. Checked Firefox again while it was still launched and it opened links properly. Closed it and tried to open link from Wire. Silence. Ran command: pidof firefox showed that firefox was running. Clicked on the firefox shortcut; same error window from my above post came out. Killed firefox and tried again several times; same story.

What do you think?

I'm also posting this thread on my Wire-Issue thread, although not so sure that it is a Wire problem anymore, since Chromium didn't have similar problem. Anyway, you never know, so I'm posting it.

Thank you for sharing all this information!

At this moment, I know about the solution as much as you do, unfortunately - and you're way ahead of me in the investigation.

We will most likely escalate this to the developers as a potential issue with opening external links from apps on Linux.

OK! Thank you for your help. I guess I will just have to open Firefox first before I try to click on Wire links, for the time being.... Looking forward to the solution!

Cheers!

P.S.: Checked with that DRM Content thingy enabled. No luck.

I found something interesting....

http://kb.mozillazine.org/Profile_in_use

"You can also get this message if you try to open a link from an external program (e.g., double-click a link in an email or HTML file) and there is another instance running that uses the default profile and that was started with the -no-remote argument (or you have the environment variable MOZ_NO_REMOTE=1 set). [7] [8] You should never use -no-remote to start the "default" profile. See Opening a new instance of your Mozilla application with another profile for more information."

and also

http://kb.mozillazine.org/Opening_a_new_instance_of_your_Mozilla_application_with_another_profile

What do you make of it??

Hey!

I am not an expert in multiple profile use, but this could be a good lead.

Are you using any profiles?

If not, could you try and experiment with creating a new profile and using it as the default?