Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Rechercher dans l’assistance

Évitez les escroqueries à l’assistance. Nous ne vous demanderons jamais d’appeler ou d’envoyer un SMS à un numéro de téléphone ou de partager des informations personnelles. Veuillez signaler toute activité suspecte en utilisant l’option « Signaler un abus ».

Learn More

Entry Box Lines

  • 1 réponse
  • 5 ont ce problème
  • 24 vues
  • Dernière réponse par cor-el

more options

Has anyone noticed in FireFox 4 a bunch of errant lines appearing in text boxes and search fields... especially when you erase text?

For me, the moment I start type (whether it's in a Google search bar, or here in this text box) a bunch of vertical lines appear after the blinking cursor, sometimes through text, or at the end of word wrap lines. If I erase, it copies the cursor all the way back, leaving black, brown, or gray lines in it's wake. Very annoying.

Has anyone noticed in FireFox 4 a bunch of errant lines appearing in text boxes and search fields... especially when you erase text? For me, the moment I start type (whether it's in a Google search bar, or here in this text box) a bunch of vertical lines appear after the blinking cursor, sometimes through text, or at the end of word wrap lines. If I erase, it copies the cursor all the way back, leaving black, brown, or gray lines in it's wake. Very annoying.

Toutes les réponses (1)

more options

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).


In Firefox 4 Safe mode disables extensions and disables hardware acceleration.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

If disabling hardware acceleration works then check if there is an update available for your graphics display driver.