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"N' Floating on my screen

  • 3 replies
  • 0 have this problem
  • 19 views
  • Last reply by lhulsmans

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There is a strange N that floats on my screen.

See images below. Doesn't show up on Safari or any other app.

There is a strange N that floats on my screen. See images below. Doesn't show up on Safari or any other app.
Attached screenshots

All Replies (3)

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I guess it's due to some add-on. What addons do you have?

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Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.

  • switch to the Default System theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window

If it works in Troubleshoot Mode and in regular mode with all extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) disabled, try to find which extension is causing the problem by enabling one extension at a time until the problem reappears.

Close and restart Firefox after each change via one of these:

  • "3-bar" menu button -> Exit (Power button)
  • Windows: File -> Exit
  • Mac: Firefox -> Quit Firefox
  • Linux: File -> Quit
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Thx ty and cor-el. These extensions show up in safe mode. How do I delete/debug? Note N still floating in screen shot.

Modified by lhulsmans