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

Avatar for Username

Pesquisar no apoio

Evite burlas no apoio. Nunca iremos solicitar que telefone ou envie uma mensagem de texto para um número de telefone ou que partilhe informações pessoais. Por favor, reporte atividades suspeitas utilizando a opção "Reportar abuso".

Saber mais

Esta discussão foi arquivada. Se precisar de ajuda, por favor, coloque uma nova questão.

Firefox on Android sync returns "could not sign in"

  • 1 resposta
  • 22 têm este problema
  • 72 visualizações
  • Última resposta por guigs

feb8born
feb8born

I have Firefox for Android beta v39 and Firefox for Android v38 installed on my phone (Lollipop 5.0.2) and no matter which one of these browsers I try, when i login for sync, it gives the message "could not log in".. I have v38 installed on my linux desktop and it works with the same credentials. I tried resetting the password also and that also doesn't help, as the problem still remains the same.. sync on desktop works and it doesn't work on Android. Any suggestions?

I have Firefox for Android beta v39 and Firefox for Android v38 installed on my phone (Lollipop 5.0.2) and no matter which one of these browsers I try, when i login for sync, it gives the message "could not log in".. I have v38 installed on my linux desktop and it works with the same credentials. I tried resetting the password also and that also doesn't help, as the problem still remains the same.. sync on desktop works and it doesn't work on Android. Any suggestions?

Solução escolhida

I understand that Firefox for Android returns: "could not sign in" I am happy to help. Let's try a new login by removing the account first.

  1. First disconnect the account from the Android Settings under "Accounts"
  2. After tapping remove, open a new window in Firefox
  3. Go to https://accounts.firefox.com
  4. Sign in once more and make sure that in your Account Settings, that Data Usage is set to auto sync.

For troubleshooting, do you have any content blockers or proxies/filters on your device?

Ler esta resposta no contexto 👍 2

Todas as respostas (1)

guigs
guigs

Solução escolhida

I understand that Firefox for Android returns: "could not sign in" I am happy to help. Let's try a new login by removing the account first.

  1. First disconnect the account from the Android Settings under "Accounts"
  2. After tapping remove, open a new window in Firefox
  3. Go to https://accounts.firefox.com
  4. Sign in once more and make sure that in your Account Settings, that Data Usage is set to auto sync.

For troubleshooting, do you have any content blockers or proxies/filters on your device?