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Stable AMO Version, see changelog for details.

Supported browsers: Firefox (Desktop and Mobile on Android), SeaMonkey, Tor Browser (where it is built-in).
Other browsers based on Gecko versions >= 45 might work, but are not tested.

Direct download

You can get latest stable version here, too, using this direct download link for NoScript 10.1.6.5
To install, just drag and drop it onto your address bar.

v 10.1.6.5
=============================================================
+ Context menu on web pages to access main UI
x Fixed UI regression showing only the two rightmost 
  components of IPv4 addresses
x [XSS] More specific and unobtrusive handling of window.name
  sanitization
x Fixed "XSS User Choices" not being included in Export files

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

You can still download NoScript "Classic" (5.1.8.4) for Firefox 52 ESR here: it will be updated until June 2018, when ESR and the Tor Browser based on it will switch to 59.

v 5.1.8.4
=============================================================
x Fixed XSS false positive on some Facebook embeddings 
  (thanks barbaz for reporting)
x Fixed edge case origin checks for WebExtensions embedded in
  privileged documents
x Fixed DNT support initialization regression (thanks barbaz
  for reporting)
x [XSS] Fixed false positives on badly encoded URLs (thanks
  sage11 for reporting)
x Script Surrogates don't affect privileged URLs anymore,
  unless the noscript.surrogate.matchPrivileged about:config
  preference is set to true (thanks barbaz for RFE)
x [e10s] Fixed temporary permissions inter-process sync issue
  (thanks to the TorBrowser team for solution)

Users of Firefox 44 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
"Quantum" NoScript 10.1.6.6rc2 development build (here the "Classic" NoScript 5.1.8.5rc1 development build).

Recent development history:

v 10.1.6.6rc2
=============================================================
+ Tab selection persistence on Options Page reloads
+ Automatically close Options Page on popup UI permissions 
  changes to avoid inconsistencies / unresponsiveness
x Fixed regression: per-sites permissions list not updated
  after addition (thanks bo elam for report)
  
v 10.1.6.6rc1
=============================================================
+ Tabbed options sections
+ Appearance option to turn off script count badge
+ Appearance option to hide context menu item
x Fixed legacy import bug creating too permissive DEFAULT
  presets (thanks Grumpy Old Lady for reporting)
x Fixed 10.1.6.2 regression: enabling object placeholders
  affected DEFAULT permissions (thanks Pansa for reporting)

v 5.1.8.5rc1
=============================================================
x Fixed JSON interactive view disabled by cascading
  restrictions (thanks jester for reporting)
x Fixed ABE Anon action loop with e10s enabled (thanks barbaz 
  for reporting)
  

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.

Have your safest browsing experience!

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