Thunderbird won't open http: links in firefox

[Jim Cunning]

Karl Klinger wrote:
> On 2010-09-27 15:59, Jim Cunning wrote:
>   
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>> I am having trouble getting thunderbird to open firefox when I click
>> on http: links in mail messages.
>>
>> 1. I've set the following in prefs.js:
>>          user_pref("network.protocol-handler.app.https",
>> "/usr/bin/firefox");
>>          user_pref("network.protocol-handler.app.http",
>> "/usr/bin/firefox");
>> 2. I've set firefox as my default browser in Menu->System
>> Settings->Default Applications
>> 3. I have installed firefox-gnome-support.
>>
>> When I click on an http: or https:  link, thunderbird displays the
>> "finger pointing" cursor and outlines the link, but does nothing
>> else.  When I right click on the link in the message, I get a pop-up
>> with choices for "Select All", "Convert to->", Copy Link Location",
>> "Save Link Target", and "Report E-mail Scam".  There is no choice like
>> "Open with..."
>>
>> What do I need to add or select in KDE, firefox, or thunderbird to get
>> this to work?
>>     
> In the thunderbird menu:
> 	Edit -> Preferences
>
> Choose the Attachments tab in the Preferences dialog.  In the Action 
> drop down lists for http and https chose "Use Firefox (default)".
>
> I recently had this stop working for unknown reasons.  I changed the 
> choice to "Always ask" and then back again, and now it works again.
>
> Karl
>   
Thanks, Karl, but unfortunately there is nothing listed in the Action
drop down list, and there appears to be no way to add a new action.  
Perhaps that the root problem, so how does one go about creating a new
action in the Thunderbird preferences?

Regards,
Jim