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pdf.js in Firefox 88+
Posted: Sun Apr 11, 2021 9:12 pm
by barbaz
From FF 88 release notes -
Does NoScript control this JS or will it be able to?
Re: pdf.js in Firefox 88+
Posted: Mon Apr 12, 2021 2:46 pm
by therube
Test & see,
https://www.pdfscripting.com/public/Fre ... lendar.pdf.
(You would hope, that FF would provide a pref to control that behavior?
After all, JavaScript is safe
.)
Re: pdf.js in Firefox 88+
Posted: Mon Apr 12, 2021 4:52 pm
by Giorgio Maone
Bad news: NoScript has no control of what happens inside PDF.js-handled pages.
Good news: you can disable JavaScript by turning the pdfjs.enablescripting about:config preference to false. Firefox will be also so kind to tell you if this breaks some feature of the current document and offer an external viewer.
Re: pdf.js in Firefox 88+
Posted: Mon Apr 12, 2021 5:24 pm
by barbaz
Thanks for the replies.
@therube I see the pdfjs.enableScripting pref in FF 87, so I tried toggling that to true and testing that PDF, but couldn't get the script to work?
@Giorgio Can NoScript tell whether a page it can't control is pdf.js? If so, should the NoScript popup on FF 88+ recommend setting that pref when opened on a pdf.js page?
Re: pdf.js in Firefox 88+
Posted: Mon Apr 12, 2021 6:07 pm
by Giorgio Maone
barbaz wrote: ↑Mon Apr 12, 2021 5:24 pm
@therube I see the pdfjs.enableScripting pref in FF 87, so I tried toggling that to true and testing that PDF, but couldn't get the script to work?
That one didn't work for me either, but
this one pops up a JS alert as soon as you hit the submit button.
barbaz wrote: ↑Mon Apr 12, 2021 5:24 pm
@Giorgio Can NoScript tell whether a page it can't control is pdf.js? If so, should the NoScript popup on FF 88+ recommend setting that pref when opened on a pdf.js page?
Need to check, but if it's possible I think it's a good idea.