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Firefox changed its fonts on all sites without me doing anything and I am unable to change it back

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  • 1 has this problem
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  • Last reply by Shadow110

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Without me doing anything, firefox changed the fonts (the degree of change is differenet for different sites) to something else (please see image) and I am unable to change it back.

This is a clean profile that has no addons.

I have ensured that the settings are at its default

And this problem does not affect TorBrowser which is based on firefox and also Chromium.

I am on Debian 10 (Buster, testing), firefox 59, KDE.

Solutions I tried:

  • I have checked the KDE settings for font.
  • I have almost all possible fonts installed (6GB).
  • Deleted everything in the .cache folder and ran fc-cache -rv.
  • Installed a fresh firefox-esr (v52) with new profile and no addons, and it has the same problem.


Why is this happening, and how do I solve it.

Thank you so much for reading this.


Other images: Font Settings

 [2]: https://i.stack.imgur.com/Z2YgM.jpg

Tor-Browser no problem

 [3]: https://i.stack.imgur.com/sNNuF.jpg
Without me doing anything, firefox changed the fonts (the degree of change is differenet for different sites) to something else (please see image) and I am unable to change it back. This is a clean profile that has no addons. I have ensured that the settings are at its default And this problem does not affect TorBrowser which is based on firefox and also Chromium. I am on Debian 10 (Buster, testing), firefox 59, KDE. Solutions I tried: * I have checked the KDE settings for font. * I have almost all possible fonts installed (6GB). * Deleted everything in the .cache folder and ran fc-cache -rv. * Installed a fresh firefox-esr (v52) with new profile and no addons, and it has the same problem. Why is this happening, and how do I solve it. Thank you so much for reading this. Other images: Font Settings [2]: https://i.stack.imgur.com/Z2YgM.jpg Tor-Browser no problem [3]: https://i.stack.imgur.com/sNNuF.jpg
Attached screenshots

Chosen solution

SOLVED:

Renamed the /home/user/.fonts folder to .fonts-disabled. Ran fc-cache -rv Now those fonts will not be used by the system.

Problem solved - firefox now has correct fonts.

That folder had fonts that I have been collecting for 15yrs (6gb), and something there was corrupting firefox. And after getting rid of it, I realized that I don't need many fonts (just the basic ones from debian plus mscorefonts was more than enough). Even other language fonts (like japanese) are still working.

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Chosen Solution

SOLVED:

Renamed the /home/user/.fonts folder to .fonts-disabled. Ran fc-cache -rv Now those fonts will not be used by the system.

Problem solved - firefox now has correct fonts.

That folder had fonts that I have been collecting for 15yrs (6gb), and something there was corrupting firefox. And after getting rid of it, I realized that I don't need many fonts (just the basic ones from debian plus mscorefonts was more than enough). Even other language fonts (like japanese) are still working.

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