Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Pesquisar no site de suporte

Evite golpes de suporte. Nunca pedimos que você ligue ou envie uma mensagem de texto para um número de telefone, ou compartilhe informações pessoais. Denuncie atividades suspeitas usando a opção “Denunciar abuso”.

Saiba mais

Esta discussão foi arquivada. Faça uma nova pergunta se precisa de ajuda.

Firefox can’t find the file at jar:file:///C:/Program Files/Mozilla Firefox/browser/omni.ja!/chrome/en-US/locale/branding/browserconfig.properties.

  • 2 respostas
  • 1 tem este problema
  • 98 visualizações
  • Última resposta de cor-el
  • Arquivado

This problem only started when I installed and then uninstalled Mapquest. FWIW, I can open more tabs with no problem.

This problem only started when I installed and then uninstalled Mapquest. FWIW, I can open more tabs with no problem.

Todas as respostas (2)

Multiple users have reported similar issues. Performing a clean reinstall of Firefox should fix any damaged or missing Firefox files while preserving your Firefox data.

Hope this helps.

WARNING: Do not use a third party uninstaller as part of this process. Doing so could permanently delete your Firefox profile data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. These cannot be easily recovered unless they have been backed up to an external device! See Back up and restore information in Firefox profiles.

What is the current homepage setting?

Firefox supports multiple homepages separated by '|' (pipe) symbols.


See also this pref on the about:config page.

  • browser.startup.homepage

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.