> NoScript Tracker is a basic tracker that makes use of iframes and the Refresh HTTP header to measure how long users spend on web pages. > It is ideal for getting basic usage statistics on the Tor network, where JavaScript is not an option for most users. NoScript can block iframes; will that disable this tracker? Also, does the Tor Browser, which includes NoScript, default to blocking iframes?
NoScript->Options->Embeddings->Additional restrictions for untrusted sites->Forbid Just turned that option on, myself. I might have had it on years ago--can't remember for sure--but now that I know it's being abused, I'll definitely leave it on. IFRAMEs are generally poor practice, anyway.
accessibility.blockautorefresh
noscript.forbidBGRefresh
noscript.forbidMetaRefresh
Additionally, you can cherry-pick options (or just use it all) from this repository at https://github.com/pyllyukko/user.js for more privacy.