Vidyarthiplus (V+) - Indian Students Online Education Forum

Mozilla Firefox has in build pdf reader.

so here is how to activate it:
Just follow the steps:
1.In Firefox, type about:config in the address bar.
2.In the about:config area, find the search box and search for this: browser.preferences.inContent.
3.Right-click it and select Toggle.
4.Now search for pdfjs.disabled.
5.Right-click and once again, select Toggle.

nice bro..it is really working

How to disable it ?
pdfjs.disabled is false by default...