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How to fix white line on top while using personas ?

  • 1 tontu
  • 1 am na jafe-jafe bii
  • 39 views
  • i mujjee tontu mooy martrex

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Everytime I set a persona for Firefox I get a white line on top, I heard that it can be fixed by modifying the pref.js file, but I don't want to mess that up.

Everytime I set a persona for Firefox I get a white line on top, I heard that it can be fixed by modifying the pref.js file, but I don't want to mess that up.

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Here's a picture of how it looks by the way.