http links in thunderbird doesn't work (fedora 15)

[kdg1955]

after updating to fedora 15, the http links in Thunderbird doesn't work.
I have tried many solutions, but without result.
- in prefs.js add :

user_pref("network.protocol-handler.app.ftp", "/usr/bin/firefox");
user_pref("network.protocol-handler.app.http", "/usr/bin/firefox");
user_pref("network.protocol-handler.app.https", "/usr/bin/firefox");

- I have tried it with KDE and GNOME.
- move .thunderbird to .thunderbird.backup and reopen thunderbird. But still same problem.
- When I create a new user it works correctly! So I think it must be related to the update.
- I also change the default application (in System Settings) to google-chrome and Opera. But no result.
- http-links in other application (dolphin, nautilus, ...) works correctly

Thanks in advance for your help.

--
kdg1955

[kdg1955]

My problem is solved.
First the history: I had installed firefox4 under Fedora 14 in directory /opt/firefox (package wasn't available under Fedora14).
After the update to Fedora15, I used again the Fedora package for firefox5, and removed /opt/firefox.

Only today I remembered this. First I tested with the symbol link '/opt/firefox/firefox' to /usr/bin/firefox. And yes it works again. Then I seek for files that contains '/opt/firefox' (fyi: find $HOME -type f -name "*" 2> /dev/null | xargs grep "/opt/firefox" 2> /dev/null), and found four files:
./.gconf/desktop/gnome/url-handlers/chrome/%gconf.xml: <stringvalue>/opt/firefox/firefox &quot;%s&quot;</stringvalue>
./.gconf/desktop/gnome/url-handlers/http/%gconf.xml: <stringvalue>/opt/firefox/firefox &quot;%s&quot;</stringvalue>
./.gconf/desktop/gnome/url-handlers/https/%gconf.xml: <stringvalue>/opt/firefox/firefox &quot;%s&quot;</stringvalue>
./.gconf/desktop/gnome/url-handlers/ftp/%gconf.xml: <stringvalue>/opt/firefox/firefox &quot;%s&quot;</stringvalue>
After editing these files, removing the symbol link and a reboot (maybe logoff is also sufficient) the links works again. Strange that Thunderbird (and firefox?) always use the gnome files, although I use KDE4.

Regards,

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kdg1955