Merge branch 'firefox-middleclick' into 'belenos'

disable abrowser middleclick on content

Avoids loading pages from clipboard when middle-clicking on a page.

This prevents loading pages by mistake, as that can be a privacy issue.

http://kb.mozillazine.org/Middlemouse.contentLoadURL

See merge request !62

helpers/DATA/firefox/settings.js

@@ -161,3 +161,6 @@ pref("media.gmp-manager.url", "http://127.0.0.1/");
 // Don't install openh264 codec
 pref("media.gmp-gmpopenh264.provider.enabled", false);
 
+//Disable middle click content load
+//Avoid loading urls by mistake 
+pref("middlemouse.contentLoadURL", false);