Este site está com funcionalidades limitadas enquanto realizamos manutenção para melhorar sua experiência de uso. Se nenhum artigo resolver seu problema e você quiser fazer uma pergunta, nossa comunidade de suporte pode te ajudar em @FirefoxSupport no Twitter e /r/firefox no Reddit.

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.

Cannot install Firefox, it disappeared from my computer for no reason.

  • 4 respostas
  • 4 têm este problema
  • 1 exibição
  • Última resposta de HeidiW

more options

Firefox and all other web browsers stopped working for me. I tried to re-install them but get an "application cannot be found" error when I try to run the setup.

Firefox and all other web browsers stopped working for me. I tried to re-install them but get an "application cannot be found" error when I try to run the setup.

Todas as respostas (4)

more options

Do a malware check with some malware scanning programs.
You need to scan with all programs because each program detects different malware.
Make sure that you update each program to get the latest version of their databases before doing a scan.

See also:

more options

Thank you.

I'm not being allowed to run setup for any of these.

But I was able to run Windows Defender as it was already installed on my machine. Still having the same problem.

more options

If you are blocked to install AV scanning programs then that is a strong indication that you are infected.
You can try to boot Windows in Safe-mode (press F8 on the boot screen) with network support to see if that allows to download the files.

If you have access to another computer then download the programs on that computer and copy them to an USB stick.


If using the above listed scanners does not fix it or if you are blocked from installing those scanners then ask advice on one of the forums that specialize in malware removal mentioned in the Popups_not_blocked article.

more options

Even is safe mode I cannot install these programs.

Not sure what to do.

I am trying the forum Spybot search & destroy to see if they can help.

Alterado por HeidiW em