We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Mozilla Support में खोजें

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

FireFox Preview File Issue

  • 3 प्रत्युत्तर
  • 0 यह समस्या है
  • 2 views
  • के द्वारा अंतिम प्रतियुतर zeroknight

more options

Firefox is showing weird characters when I "preview" pdf and other files. But the text becomes normal in the downloaded file. Anyone know how to fix this? Thanks.

Firefox is showing weird characters when I "preview" pdf and other files. But the text becomes normal in the downloaded file. Anyone know how to fix this? Thanks.
संलग्न स्क्रीनशॉट

All Replies (3)

more options

Please provide steps to replicate the issue. What steps are you taking to "preview" the pdf? Does this mean that you're simply viewing a pdf in Firefox? Where is this file, can we access the same pdf? Do you have the same issue on this page? --> https://www.irs.gov/downloads/irs-pdf Did you try Firefox in Safe Mode? https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode#search104

jonzn4SUSE द्वारा सम्पादित

more options

@jonzn4SUSE

After I reset my firefox to factory default state, the link from https://www.irs.gov/pub/irs-pdf/p5651.pdf works fine. But after I drop my user.js file into my profile, the font becomes weird again.

user.js: https://github.com/AspiringZero/FireFox_with_TST_Setup/blob/main/user.js

more options

I would start by disabling the "GFX" section of your user.js.