Fix slowness, crashing, error messages and other problems

• Fix problems with websites (Facebook, YouTube, webmail etc.)
• Error messages: what they mean and how to fix
• Unblock Firefox from connecting to the Internet
• Procedures to diagnose and fix problems
• Videos, sound, pictures and animations don't work
• Firefox is slow or stops working
• Firefox crashes
• Firefox won't save settings or remember information
• Problems with add-ons, plugins or unwanted software
• Restaurar o Firefox - Corrigir facilmente a maioria dos problemas Diversos problemas podem ser corrigidos restaurando o Firefox para as definições por defeito. Os seus marcadores, separadores e senhas serão salvos.
• Erros recentes no Firefox Este artigo lista os últimos problemas e as respectivas soluções para os utilizadores que tenham recentemente atualizado o seu Firefox para a última versão disponível.

Em Inglês

• Uninstall Firefox from your computer
• Reset your Master Password if you've forgotten it
• Stop Firefox from opening multiple tabs when it starts
• Navigation buttons like back, home, bookmarks and reload are missing
• Firefox is stuck in Safe Mode
• Firefox repeatedly opens empty tabs or windows after you click on a link
• Fix printing problems in Firefox
• Problems with email and how to find help