TRUE noob, PDF, Student.

Homman · 10-02-2019, 04:31 AM

Hello,
Im a student(Non-Technical/Non_CS):
Purpose:1) Books; 2) Browser;
Priority:1)Better Battery Life; 2)Black Background for E-Books(PDF);
I currently have MS Windows Installed in my Laptop and Writing this Query With Firefox browser in "GNU with Linux Mint" Live Environment.
a)I Want to ask that can i have some OS like Chromium OS but running Firefox as Firefox has an in built PDF.js element for PDFs and Its Non-Google and it has Satisfied my needs till now as of almost 7 months of first install.
So my another question is:
b)how can i have inverted colors in Firefox.And if not in firefox but on complete OS Ubuntu/Mint/(modified)Chromium OS to use firefox if 'a)' is possible.
NOTE:Im Okay if there is some Command for it.

bodqhrohro · 10-02-2019, 10:37 AM

In you Firefox profile directory, create a "chrome" folder, and, in it, a "userContent.css" file with the following contents:

Code:

#viewer.pdfViewer {
  filter: invert(100%);
}