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Stable AMO Version, see changelog for details.

Supported browsers: Firefox, SeaMonkey, IceWeasel, Tor Browser (where it is built-in)
Other browsers based on Gecko versions >= 13 might work, but are not tested.

Mobile Version

If you want to test NoScript 3 alpha mobile version (compatible with Firefox for Android), you can find it at the NoScript Anywhere mini-site.

Direct download

You can get latest stable version here, too, using this direct download link for NoScript 2.9.0.12
To install, just drag and drop it onto your address bar.

If you find any problem installing it, this FAQ may help.

Users of Firefox 13 and below are urged to upgrade their very unsafe browser. For those few who can't,

Development version

If you're brave enough and you need a specific feature or fix not released yet, or you simply want to provide feedback before official release, you may want try this
development build.
Recent development history:

v 2.9.0.12rc2
=============================================================
x Updated DNT implementation to match the most recent spec
  about navigator.doNotTrack values (thanks Francois Merier)
x [XSS] Better compatibility with Unionbank's website (thanks
  Brent for reporting)
x Fixed bug 1278735 (JavaScript disabled in private windows)
x Fixed JSON viewer not working
x about:feed in the mandatory whitelist to fix bug 1272139
x [XSS] Disable JavaScript on FTP-served pages when a
  potential  DOM XSS threat is detected (thanks Emanuel
  Bronshtein @e3amn2l for reporting)
x Fixed DOS through script-triggered ClickToPlay confirmation
  dialogs in a loop (thanks Emanuel Bronshtein @e3amn2l for
  reporting)
x Fixed placeholder links might be potentially used as XSS
  vectors if stars were properly aligned(thanks Emanuel
  Bronshtein @e3amn2l for reporting)

v 2.9.0.12rc1
=============================================================
x [Surrogate] Updated google-analytics.com replacement (
  thanks noscriptsplox)
x [XSS] Fixed regression (thanks Masato Kinugawa for report)

Feedback

If you find something wrong about NoScript, read the FAQ page and/or let me know: I'll try to fix it as soon as I can.

You can also discuss about NoScript on this Forum.

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