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When I open .txt files with firefox all underscores disappear. How do I fix this?

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I have a list of websites in a .txt file and they all contain underscores. When I open the file with firefox all underscores turn into spaces, so that the links don't actually work.

I have a list of websites in a .txt file and they all contain underscores. When I open the file with firefox all underscores turn into spaces, so that the links don't actually work.

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Can you post a short excerpt of this text file?

Note that you usually need an extension to open links in a text file via a left-click with the mouse.


Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do NOT click the Reset button on the Safe Mode start window.