firefox-legacy-1.16.4.25

Change

• Backport several improvements and fixes from the upstream (thanks to @hawkeye116477)
  • Allow :upward() operator to select html element
  • Fix broken :spath operators starting with >
  • Better parsing of hosts file system addresses
  • Add ability to control auto-commenting at filter creation time
  • Use ISO8061 dates in filter comments
  • Fix xmlhttprequest redirection
  • Fix badfilter exception on CSP filters
• Use "Trusted sites" instead of "Whitelist"
• Change the way zapper and picker work on CSP protected sites (requires bug #1415352, see #254)

Note: The release notes are created/maintained by @JustOff.