Join us and the lead editor of IRL, Mozilla's multi-award-winning podcast, for a behind-the-scenes look at the pod and to contribute your ideas for the next season, themed: "AI and ME." Mark your calendar and join our Community Call on Wednesday, Aug 7, 17:00–17:45 UTC. See you there!

Avatar for Username

Search Support

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

Mulongo oyo etiyamaki na archive. Tuna motuna mosusu soki osengeli na lisalisi

Small fonts have color distortions when rendering on Linux, how to fix?

  • 4 biyano
  • 2 eza na bankokoso oyo
  • 5 views
  • Eyano yasuka ya FredMcD

gccpy
gccpy
more options

I noticed that small fonts on one website were strangely colorful. I narrowed it down to a simple HTML snippet: 

<span style="font-family:sans-serif; font-size:10pt; font-weight:lighter; color:white; background-color:black;"
      >The quick brown fox jumps over the lazy dog</span>

Attached scaled image on how it renders on my Linux Firefox 47.

The text is supposed to be white, and it is working on windows. On two different Linux distributions (Arch and Ubuntu) colors appear out of nowhere. Does Firefox need something specific to be installed on Linux for correct font rendering?

I noticed that small fonts on one website were strangely colorful. I narrowed it down to a simple HTML snippet: <pre><nowiki><span style="font-family:sans-serif; font-size:10pt; font-weight:lighter; color:white; background-color:black;" >The quick brown fox jumps over the lazy dog</span></nowiki></pre> Attached scaled image on how it renders on my Linux Firefox 47. The text is supposed to be white, and it is working on windows. On two different Linux distributions (Arch and Ubuntu) colors appear out of nowhere. Does Firefox need something specific to be installed on Linux for correct font rendering?
Bafoto sur écran jointes

Ezalaki modifié na cor-el

Solution eye eponami

Looks that Firefox has a problem with the anti-aliasing settings and uses all available horizontal RGB pixels to render the text.

Tanga eyano oyo ndenge esengeli 👍 2

All Replies (4)

gccpy
gccpy Nkolo motuna
more options

Seems HTML wasn't escaped correctly in the original post:

<span style="font-family:sans-serif; font-size:10pt; font-weight:lighter; color:white; background-color:black;" 

     >The quick brown fox jumps over the lazy dog</span>
cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Solution eye oponami

Looks that Firefox has a problem with the anti-aliasing settings and uses all available horizontal RGB pixels to render the text.

gccpy
gccpy Nkolo motuna
more options

cor-el said

Looks that Firefox has a problem with the anti-aliasing settings and uses all available horizontal RGB pixels to render the text.

Disabling sub-pixel rendering solved the issue, thanks.

FredMcD
FredMcD
more options

Hello,

I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution more easily.

Thank you for contacting Mozilla Support.