Here's what I want to do. I would like Nautilus to associate HTML files with Firefox.

So I go to "Hat Menu" -> Preferences -> File types and programs -> Documents -> World Wide Web -> HTML page

I then click on Custom & add the following line :

~/programfiles/firefox/firefox -remote 'openURL (%s, new-window)'

I would like %s to be replaced by the path & filename of the file that I've double-clicked on. If I leave it as is for the moment, Firefox opens up but loads www.hoovers.com instead.

PS. I use the remote parameter, because if I happen to have an instance of Firefox allready running, when I double click on an HTML file, I get a Profile Dialog box because Firefox cannot have two instances using the same profile ( unless someone can show me how ).

It works in KDE when I use %u instead of %s.

That www.hoovers.com thing is quite odd, it's like built-in adware, my Firefox went there too when I tried %s.

It took a lot of fiddling but now I'm done.

create a file & add the following lines in it :

#!/bin/sh

# Modify the FIREFOX_HOME path
# to where your mozilla based
# browser is located
export FIREFOX_HOME=/opt/firebird-builds/current
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$FIREFOX_HOME

# get URL to load
url=$1; [ -z $url ] && url=about:blank

# try xremote first
$FIREFOX_HOME/mozilla-xremote-client openURL\($url\) && exit 0

# if xremote failed, then launch the browser
exec $FIREFOX_HOME/MozillaFirebird $url

& then go to "Hat Menu" -> Preferences -> File types and programs -> Documents -> World Wide Web -> HTML page

Click on Custom & direct it to the script you've just created ( do a chmod 777 on that file just in case ). Do not, I reapet do not add %s.

Next up is getting thunderbird to work with that script.

I'm really keeping an eye on Fedora & it seems one of the problems I had with RHL 9 has been taken care of in FC2.

Taken from -> Firefox and Thunderbird for FC2