[tracker] firefox: Fixed plugin location which has changed

[Martyn James Russell <mr src gnome org>]

commit 0e6b0b92e7e9fe2b1baeff69b5a416675c5c1531
Author: Martyn Russell <martyn lanedo com>
Date:   Wed Mar 13 20:33:10 2013 +0000

    firefox: Fixed plugin location which has changed

 configure.ac |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 474b0f2..63d3c5b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1347,7 +1347,8 @@ if test "x$have_tracker_miner_firefox" = "xyes"; then
                               [path to Firefox plugin directory]))
    if test "x$with_firefox_plugin_dir" = "x" ; then
       # This is a symlinked to $prefix/share/xul-ext
-      tracker_miner_firefox_install_dir="${prefix}/lib/firefox-${firefox_version}/extensions"
+      # This was ${prefix}/lib/firefox-${firefox_version}/extensions
+      tracker_miner_firefox_install_dir="${prefix}/lib/firefox-addons/extensions"
    else
       tracker_miner_firefox_install_dir="$with_firefox_plugin_dir"
    fi