Despite JavaScript Roots, Mozilla PDF Reader Shows Promise

Last week Mozilla announced that Firefox 19 will include a JavaScript-based PDF viewer. According to the article, you’ll soon be able to rid yourself of the vulnerability laden Adobe Reader software. We don’t see this happening though as you’ll still need it for local PDF files but we think it’s an excellent step in the right direction for most of what people work with. Yeah, it will have vulnerabilities too based on it’s HTML5 and JavaScript roots however at least it’s open source.

Theoretically using the lightweight Mozilla PDF viewer that is open to all for scrutiny should introduce less risk into your organization as compared to using the closed sourced, unnecessary feature-stuffed bloatware that Adobe Reader has become. As long as Mozilla keep this new PDF viewer simple in it’s functionality, just viewing basic PDF files, it should become relatively more secure in no time.


Mozilla’s Firefox web browser now includes a built-in PDF viewer – allowing users to bin plugins from Adobe and other developers.

The move to run third-party PDF file readers out of town comes after security holes were discovered in closed-source add-ons from FoxIt and Adobe. The new built-in document viewer is open source, just like Firefox, and is written in JavaScript.

The web browser’s PDF.js emerged as a beta version in January, and yesterday was added to the mainstream build of Firefox, specifically the new version 19.0. There’s more on the HTML5 and JavaScript used to create the PDF reader right here.

As an upside of using HTML5 and JavaScript, the viewer is multi-platform and works across PCs, tablets and mobile phones – it should also work in other web browsers.

Continued here.


What do you think about the Mozilla PDF reader? Post your comments below. Today’s post pic is from

4 comments for “Despite JavaScript Roots, Mozilla PDF Reader Shows Promise

  1. February 25, 2013 at 11:36 pm

    BLOGGED: Despite JavaScript Roots, Mozilla PDF Reader Shows Promise

  2. February 26, 2013 at 4:09 pm

    There are plenty of alternative programs that don’t have the issues of Adobe Reader.

  3. February 26, 2013 at 9:30 pm

    Dorian: Agreed however even some of them have been having problems and need patching … although not as much as Reader. FoxIt comes to mind… But I think the big differentiater is that the Mozilla one is open source. Not many of the alternative popular PDF readers can say that. There’s Sumatra but I’m not aware of any others.

  4. February 28, 2013 at 3:46 am

    Despite JavaScript Roots, Mozilla PDF Reader Shows Promise

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