Enter 0 in the value field and press the Enter key or click on the Save icon.Look for pdfjs.annotationEditorMode preference and double-click on it or click on the Edit icon available for this preference.This will open the Advanced Preferences page There, press the Accept the Risk and Continue button. You will see a Proceed with Caution message.

Type about:config in the address bar and use the Enter key.To enable PDF editing tools in Firefox PDF reader on a Windows 11/10 computer, follow the steps mentioned below: How to enable PDF editing tools in Firefox PDF Reader You can also select a color of your choice for using the text tool and ink tool.īy default, its PDF editing tools remain disabled or deactivated, this tutorial has covered all the steps to activate and use these options. Using these PDF editing tools, you can add text and use ink annotation to draw on PDF with freehand mode. Now, it also lets you annotate a PDF using its PDF editing tools. The built-in PDF viewer or reader of Firefox has some interesting features that include two-page view mode (Odd Spreads), Even Spreads, Horizontal Scrolling, view document properties, Presentation Mode, etc. This tutorial will show you how to enable and use PDF editing tools in Firefox PDF reader on Windows 11/10.

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