When browsing Netflix FF gives frequently "browser not responsive" message. Many times it freezes and gives "non responsive script". script name: codex.nflwext.com/%52......bootstrap.js.akira%7Ccommon.js:5 This seems to be a script to personalize the netflix browser page. Info: windows 10, FF53.02 (32 bit) all up to date. add-ons (no script, adblock+) disabled but no effect. Netflix works fine in Opera.