| Tutorial details | |
|---|---|
| Difficulty level | Easy |
| Root privileges | No |
| Requirements | Firefox |
| Est. reading time | N/A |
Option #1: Set pdf Firefox options
MS-Windows user at the top of the Firefox window, click on the Firefox button and then select Options. Select Applications tab.
A note about Linux users
From the menu bar > Edit > Preferences > Select Applications tab.
Sample outputs:
Fig.01: Setting pdf application preferences
Fig.02: Set the default action for the pdf file
- Choose an application: To choose a local or web application to handle a type, select the application from the drop-down menu. If you want a local application that is not in the menu to handle the type, select Use other… from the drop-down menu and point Firefox to its location.
- Choose a feature or plugin: If you want a feature or a plugin in Firefox to handle the type, and one is available, select it from the drop-down menu.
- Save on your computer: Some file types can be saved to your computer. Select Save File from the menu for one of these file types to have Firefox save that type of file to the location specified in the Downloads settings.
Finally, click on the Close button.
Check out related media
This tutorial is also available in a quick video format:
Video 01: Firefox: Disable The New built-in PDF-viewer Under Linux or Unix Oses
Option #2: Set pdfjs.disabled option
Type the following in Location Bar (address bar)
about:config
Sample outputs:
Fig.03: Click the button labeled “I’ll be careful, I promise!”
pdfjs.disabledClick on its name to select it > Right click on pdfjs.disabled entry > Select Toggle (set it to TRUE).
Fig.04: Set pdfjs.disabled to true
How do I test new settings?
=> Visit this url and download pdf file.
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I’ll be careful, I promise
It can also be disabled by means of adding a line to the profile’s user.js file:
user.pref(“pdfjs.disabled”, true);