How to Enable Firefox’s Built-in PDF Reader

How to Enable Firefox’s Built-in PDF Reader

Firefox 15 or higher include an all new PDF reader built into the browser–for those of you wondering, that means you can finally disable the Adobe PDF Plugin and uninstall it once and for all.

Note: obviously if you need to access more advanced PDF features, you’ll still need the Adobe plugin.

Here is how to go about it :

Open Firefox and navigate to about:config.

This will bring up a sarcastic warning telling you that you might void your warranty, just click the “I’ll be careful, I promise!” button to move on.

Now you will need to search for:

browser.preferences.inContent

When you find it, right click on it and select Toggle from the context menu.

Next you will need enable the actual PDF Reader feature, you can do this by searching for:

pdfjs.disabled

That’s all there is to it, you can even drag PDF files on your local machine on t0 the Firefox windows to view them!

Note: You will need to disable the Adobe addon after you have completed this.

Posted in: Firefox, How to, Tips and Tricks