Mozilla starts blocking addons with obfuscated code

Since June 10, 2019, Mozilla will block those Firefox addons with obfuscated code.

In this way, famous browser’s developer will update its policy on addons for Firefox. Obviously, this step aims protection of users from malware or unwanted browser extensions.

Developers that use in their extensions obfuscated code, should send new versions (without obfuscation) before June 10. Otherwise addons will be blocked.

“We update our policy on extensions for Firefor to reinforce users’ security and confidentiality. New rules will take effect on June 10, 2019. Extensions that contain obfuscated code, will nor further exist in browser. Minification and concatenation are allowed in present initial code” – wrote Mozilla developers in their blog.

Mozilla also plans to make process of blocking more transparent, so reasons for blocking or turning off some addons would be comprehensive for everybody.


Obfuscation (in Latin obfuscare – to shadow), also called code obfuscation – is adduction of initial text or code to a form that preserves is functionalisms but complicates analyses, understanding of algorithms and modification.

About Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

Check Also

Microsoft and control of scammers domains

Microsoft gained control over six domains of “Coronavirus” scammers

Microsoft through the court gained control over six domains of the so-called “Coronavirus” scammers. These …

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.