Apr 22 2014

Mozilla has disallowed javascript: execution via the address bar

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This specific content was written 8 years ago. Please keep this in mind as it may be outdated and not adhering to best-practices.

If you try running javascript code via the address bar (not not from a bookmark) it no longer works as mozilla has disabled it for 2 years now.

Trying the following:

javascript:alert("hello");

Causes the following error to appear in the error console:

Error: uncaught exception: ReferenceError: alert is not defined

This is due to a patch implemented by firefox for security reasons. See:



Chris Georgoulis

Summary: - Primary programming language: Java SE (SWING, JDBC), Java EE, (JSF - PrimeFaces, JPA - EclipseLink/Hibernate, EJB, CDI ), - Secondary languages: C/C++, Web Technologies(HTML, XHTML, XML, CSS, JavaScript, jQuery, AngularJS). - Frameworks: Android SDK, Global Sensors Network (GSN), Open Computer Vision (OpenCV). - IDE's: Eclipse, Visual Studio - Other Apps: MS Office, Photoshop, Dreamweaver - Database Design - SQL(MySQL), NoSQL(MongoDB) - Modeling Tools: UML

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