diff --git a/README.md b/README.md
index 792ac2b7c..7f50b87b5 100644
--- a/README.md
+++ b/README.md
@@ -35,11 +35,10 @@ PDF.js is built into version 19+ of Firefox, however the extension is still avai
 
 + [Development Version](http://mozilla.github.io/pdf.js/extensions/firefox/pdf.js.xpi) - This version is updated every time new code is merged into the PDF.js codebase. This should be quite stable but still might break from time to time. This version is also reported to work when installed as extension in Seamonkey 2.39.
 
-#### Chrome and Opera
+#### Chrome
 
 + The official extension for Chrome can be installed from the [Chrome Web Store](https://chrome.google.com/webstore/detail/pdf-viewer/oemmndcbldboiebfnladdacbdfmadadm).
 *This extension is maintained by [@Rob--W](https://github.com/Rob--W).*
-+ Opera has also published an extension for their browser at the [Opera add-ons catalog](https://addons.opera.com/en/extensions/details/pdf-viewer/).
 + Build Your Own - Get the code as explained below and issue `node make chromium`. Then open
 Chrome, go to `Tools > Extension` and load the (unpackaged) extension from the
 directory `build/chromium`.