Firefox: Update from version 66.0 to 66.0.3

Release Notes
https://www.mozilla.org/en-US/firefox/66.0.3/releasenotes/?utm_source=firefox-browser&utm_medium=firefox-browser&utm_campaign=whatsnew

Add default preference to disable
'welcome back refresh request'

firefox.be0

@@ -2,7 +2,7 @@
 
 #export BEE_TMP_TMPDIR=/dev/shm BEE_TMP_BUILDROOT=/dev/shm/bee-root BEE_MAKEFLAGS='-j80'
 
-# BEE_VERSION firefox-66.0-0
+# BEE_VERSION firefox-66.0.3-0
 
 #https://ftp.mozilla.org/pub/firefox/releases/$pkgversion/SOURCE to find the right download link
 SRCURL[0]="https://ftp.mozilla.org/pub/firefox/releases/${PKGVERSION}/source/firefox-${PKGVERSION}.source.tar.xz"
@@ -221,5 +221,8 @@ defaultPref("browser.sessionstore.interval",150000);
 
 //enable legacy extensions
 defaultPref("extensions.legacy.enabled",true);
+
+//disable firefox refresh request
+defaultPref("browser.disableResetPrompt",true);
 EOF
 }